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Author: admin | 14.10.2015 | Category: Homeopathic Treatment For Tinnitus

Today I have an important guest post that will be of importance to anyone who suffers from ear discomfort while flying.  I’m a sufferer, as a result of allergy and sinus-related issues, so have to take a lot of precautions when I travel.  And that includes not flying when my ears get too bad! I have found this especially true when reaching out to those who suffer with ear problems associated with flying, scuba diving, allergies, or colds.  Most people are aware that ears can be an issue when flying – and many think of the crying babies on board. When we fly, the changing air pressure (felt mostly on descent as air pressure increases outside) causes a negative pressure in the middle ear. However, when there is pressure and fluid in the middle ear, the eardrum is unable to vibrate properly and our hearing is affected.
This may be a temporary issue and a few days after a flight, we sigh in relief as the ear finally “pops” open and all is equalized. The more severe ear issues can last for years as congestion and changes in pressure affect the normal workings of the ear. That tiny little Eustachian tube plays a very important role in our hearing, ear health and comfort. When yawning, swallowing, and the Valsalva Maneuver fail to open the little tube, there is a clinically proven device that will naturally and safely open the Eustachian tube with a regulated amount of air. My role as a nurse consultant and travel expert has been to find “Products Worth Packing” that address the practical issues we face when traveling. The EarPopper in our bag has made sure hearing loss and ear pain never become part of our itinerary!
Anya Clowers is a nurse consultant and travel expert passionately educating travelers of all ages about the importance of travel preparation.
Mary Jo Manzanares is a founder and the editor-in-chief of The Traveler’s Way, an online travel magazine proving informational and inspirational travel recommendations for curious Baby Boomer travelers.
When she’s not traveling, Mary Jo likes lingering over a cup of coffee, wandering in a museum, sipping wine at a cafe, and sharing it all with friends and readers.
In addition to traveling, Mary Jo likes lingering over a cup of coffee, wandering in a museum, sipping wine at a cafe, enjoying a relaxing massage, and sharing it all with friends and readers. Life's a Beach Classic White Coffee Mug by TravelingwithMJ Make a unique personalized coffee mug online at Zazzle.
The type of Eustachian tube dysfunction treatment that you should try depends much on the depth and extent of the problem, and what caused it.
Problems with your Eustachian tube can be a short and temporary discomfort, often lasting only for a few days. As you possibly know, ETD is caused by a failure of the tube to open properly or when a blockage stops the flow of air to the middle ear. An easy to do Eustachian tube dysfunction treatment involves simple maneuvers that can relieve you of that annoying pulsating feeling inside your ear. On the other hand, if you’re finding yourself in a daily basis of suffering from a blockage in your Eustachian tube, you may need more medical attention and a visit with your doctor would be a wise move. If you feel dizzy doing some of the maneuvers or the nasal sprays just won’t work, you might be suffering from a chronic form of dysfunction and might need a more permanent Eustachian tube dysfunction treatment procedure.
As said, the right Eustachian tube dysfunction treatment for your problem would greatly depend on its cause. The cavities in the nasal passages and the sinuses naturally produce mucous to moisten the nasal membranes and to trap bacteria and other debris inhaled while breathing. A post nasal drip remedy is always available for you to try so you need not suffer uncomfortably from this condition.
Since post nasal drip is usually associated with allergies, its main triggers are allergy causing agents. Obviously, all of these allergens are part of daily life so you can’t exactly avoid them. Always remember these tips on how to get rid of post nasal drip and save yourself from all the inconveniences of a nasal drip. The linings in the nasal cavities and sinuses produce mucous naturally to clean the nasal membranes and clean the air of dirt and other foreign matter. Treatment for post nasal drip is much-researched information for those suffering from the condition.
However, there are suggestions available which can help improve the condition which have been tested before by the very people who have been tormented by post nasal drip. If you feel that the condition is worsening then it is best to seek medical help as tests are to be done by an EENT specialist to determine the root of the problem and provide you with treatment for post nasal drip. There are times when you fail to treat the common colds, thinking that it might go away on its own which it usually do after a few days. Post nasal drip that remains untreated may cause you to experience difficulty in swallowing due to the swelling of the throat and a chronic cough.
There are different ways to treat post nasal drip treatment but the best cure for it is to cure first the sickness that triggers it like sinusitis infection and rhinitis.
If it is really a sinusitis infection and you want to try taking natural medications, you can do so but inquire and read from various sources about it before treatment.
The most common kind of ear infection affects the middle ear (the space behind the eardrum) and accompanies a cold or flu.
Usually, it is easy to tell when you may have an ear infection, especially if you are getting over a cold or respiratory infection.
Since young children may have difficulty describing their symptoms, parents often identify a possible ear infection by observing children rubbing or tugging at their ears to try and relieve pain and pressure. Ear infections are usually left to run their course, but there are home remedies to try and decrease the pain or speed the healing. Apple cider vinegar: mix equal parts water and apple cider vinegar and soak a cotton ball in the solution. Although these and other home remedies exist, the best thing to do in the event of an ear infection is nothing.
When you’re getting over a cold, do you ever feel like your ears need to “pop” or that your hearing is muffled?
A Eustachian tube dysfunction is caused by a blockage of the Eustachian tube, which is a narrow tube that connects the back of the nose to the middle ear.
The most frequent cause of Eustachian tube dysfunction is a stuffy nose from even a mild cold, when the mucus from the nose blocks the tube. If you are uncomfortable and want to try alleviating the problem, or if the problem has persisted for an unusually long time, you can try swallowing, yawning, or chewing repeatedly until it goes away.
If the problem does not go away with these natural methods, you may have to go to the doctor.
A blocked Eustachian tube treatment causes people to feel pain especially if the air blocked causes a lot of force on the middle ear which makes the eardrum’s free movements limited. Aside from the chewing gum as a blocked Eustachian tube treatment, salt and water can also help in relieving this case. The Eustachian tube is a narrow connection between the middle ear and the back of the nose. When does one know that  Eustachian tube dysfunction symptoms occur?  There are many Eustachian tube dysfunction symptoms or ETD symptoms.
The Eustachian tube serves as a link between the middle ear and the back of the nose and upper throat.
A lot of people commonly experience barotrauma or Eustachian tube blocked in one way or another. The Eustachian tube is labelled in the diagram at the top of this page as the auditory tube.
The function of the Eustachian tube is to equalise pressure between the middle and out ear, preventing damage to the tympanic membrane as a result of changes in air pressure.
Insect have a membrane,A  the tympanum stretched across a frame with an air sac behind it.A  Vibrations are detected by an receptor called a chordotonal organ. The lateral line of the European Roach (left).A A  The structure of the lateral line showing a neuromast (right). The Eustachian tube is labelled in the diagram at the top of this page as the auditory tube.A  The tube is usually closed but can open to allow a small volume of air to pass between the middle ear (the area between the tympanic membrane and the oval window) and the nasal cavity. The function of the Eustachian tube is to equalise pressure between the middle and out ear, preventing damage to the tympanic membrane as a result of changes in air pressure.A  We become aware of the Eustachian tube when our ears a€?popa€? when ascending or descending a steep mountain in a car or changing altitude in an unpressurised aircraft.
The cochlea and semi-circular canals (associated with the detection of motion).A  Notice the oval window (vestibular fenestra) and round window (cochlear fenestra). Another possibility is to do with the size of the organs producing the sound.A A  It would be very difficult for a sparrow to be able to produce the frequencies used by elephants because their bodies are so small. Identify the direction from which sound is coming is called sound localisation.A  Mammals a number of different methods of localising sound, including timing the difference between arrival times at the ear. GOFAR Services, LLC - Appliance Repair Houston, TX - Chapter 4COMPRESSOR IS RUNNINGBUT REFRIGERATOR IS NOT COLDCOMPRESSOR IS RUNNING BUT REFRIGERATOR IS NOT COLDBefore you perform any of the other tests in this chapter, make sure that the compressor is running. Understanding the function of the body greatly increases compliance and personal satisfaction in preventing or treating ailments.
Named after a 16th century scientist, the tiny little tube has the big role of regulating ear pressure in the middle ear cavity. Normally the little Eustachian tube will open (the “pop” we may hear) and pressure is adjusted.
The negative pressure building in the middle ear cavity may cause pressure against the eardrum and pain. The cymbal like eardrum vibrates with sound, sending vibration through the middle ear cavity to the nerves and tiny bony structures in the inner ear that communicate with the brain where sound is processed into what we “hear”.
This battery-powered device, appropriately called the EarPopper, has eliminated tears and pain for my family and friends since 2007 (when I discovered the device at a medical conference) when used during flight, driving over Mountain terrain, and after colds and allergies.
The EarPopper literally turned my then 3-year-old son’s tears into laughter as he learned to use the EarPopper on descent. If ear issues have ever been a concern, then packing the EarPopper may be something to discuss with your medical care provider. She is the Conference Director for TBEX (Travel Blog Exchange), has been a speaker at various industry events, and has a personal travel blog at Traveling with MJ.
Mary Jo's most recent travel has been Spain, a river cruise on the Rhine, and a wine tour in Walla Walla.
There are commonly two ways by which you could address a Eustachian tube dysfunction or ETD: medical therapy or surgical procedure. If the symptoms last longer, however, you may be in need of another Eustachian tube dysfunction treatment to address the problem. It can also be caused from a recurrent sinus infection which leads to excess production of mucus and causes a blockage in the tube’s opening.
This includes yawning or frequently swallowing to exercise the muscles of your ear and help equalize the air pressure in your auditory organ.
A Eustachian tube dysfunction treatment that you could try is the use of antihistamine or allergy nasal spray that can reduce the mucus production in the ear and stop the blockage.
It is best for this case that you ask for a diagnosis from a otolaryngologist to detect the real cause of your problem. To make sure you’re not unwittingly committing yourself to inappropriate treatment measures, arrange an appointment first with your doctor and let a diagnosis determine the root of the ETD.
Antihistamines for those suffering from allergy can be of help and decongestants decrease inflammation in the nasal passages.
A runny nose may be a simple illness but it’s not as simple when it comes to treating it. Stay away from known allergens, irritants, and other triggers like animal dander, pollen, smoke, and dust.
A post nasal drip is often paired with another illness such as a sinus infection or some types of seasonal allergies. But you can take necessary precautions to ensure that you are exposed to less of these allergens. This will allow the mucous to turn thinner thus enabling it to flow out of the nasal passages. Although treatment for post nasal drip varies and is done according to possible causes, there is no one way to completely eliminate the condition from a person suffering from it. If you know you are allergic to a certain food or thing, avoid the cause of the allergy especially if this worsens post nasal drip. Decongestants may be taken as treatment for post nasal drip to reduce swelling of the nasal membranes.
The most common treatment for post nasal drip is to drink lots of fluids, most notable of which is water. Nasal Irrigations as treatment for post nasal drip may be performed a few times a day to lessen thick secretions from the nasal cavities.
But there are colds that turned into severe cases and post nasal drip treatment is one of those. That is why people with allergies such as rhinitis and sinusitis infections are prone to experience post natal drip. There is a need to find the treatment for this sickness first and address the post natal drip afterwards.  Through this, people with allergies can use anti histamines to stop this allergic reactions.

You can go to a doctor to get a prescription or you can treat it yourself.  By the way, it is best to go to a doctor first before administering any self-treatment so that the doctor can make a thorough check up on you and to properly diagnose your condition. The medicine for this kind of infection is available at the local pharmacy and the do-it at home treatments is available in your cupboard.  Even nasal polyps can be removed to stop the recurrence of the sinusitis infection. The inflammation is the allergic reaction especially if one is exposed to allergens.  Like sinusitis infection, rhinitis can also be recurring especially if it is an allergic reaction.
It might be a symptom for another sickness.  People suffering from it must undergo laboratory, endoscopic and treatment tests for proper diagnoses.
Although they are especially common in children (about 75% of children get at least one ear infection before they turn 3 years old), they still occur in adults of all ages. This happens because germs in the nose or sinus cavities can travel to the middle ear via a tube and grow there, causing the infection. Doctors will sometimes prescribe antibiotics in babies, but the infections usually resolve on their own. Plug your ear with the cotton ball for a few minutes, then lie on the opposite side to drain the ear.
The problem is likely to go away on its own after a few days or a week if it is caused by a cold, and within a few minutes to an hour if it is caused by air travel. He or she may prescribe decongestant or steroid nasal sprays or antihistamine pills to reduce inflammation and allergies. The tube is the connection of the ear to the pharynx of the throat and only opens when one chews, yawns, or swallows.
If one yawns and feel a little bit of air in their ears or go for a swim and while reaching the deepest level experience blockage of air in their ears that sometimes hurt is a sign of a blocked Eustachian tube. Air usually makes up the space in the middle ear which is adjacent to the eardrum; it is located behind it actually. One of these is caused by the occurrence of pressure dissimilarities between the inside and outside of the ear drum.
It is remarkable to point out that the air pressure in the middle ear is the same with that of the air pressure outside of the body. If one is riding in a plane or the car used in riding climbs up a stiff mountain, the altitude change is felt as there is a sudden loss of hearing temporarily.
If it is not running, see Chapter 5.Some refrigerators are very quiet and smooth when they operate. Extending from the back of the nose (outside world) to the middle ear, the tube lies closed at rest. However, if congestion is present around that tube or the plane does a quick descent, it can be difficult for the little tube to do its job. This vacuum like pressure then may pull fluid into the middle ear cavity, further applying pressure on the eardrum as well as preventing the little Eustachian tube from opening against the pressure and fluid.
Her practical travel advice has been praised by the NY Times, MSNBC, ABC News, Rick Steves, and People Magazine. Each treatment is meant to solve the problem in relation to the degree of dysfunction that the tube has gotten into. Frequent changes in air pressure (if you’re travelling a lot or are a diver) can also lead to a temporary blockage in the Eustachian tube. Oftentimes, severe cases like this call for a surgery wherein a ‘tube’ to replace the function of your Eustachian tube would be placed in the eardrum and thereby acts as a pressure equalizer. There are non-medicated sprays you can buy or you can also try mixing one pint of water with a teaspoon of salt. These medicines are available over-the-counter and are worth trying for post nasal drip remedy. These drugs as part of post nasal drip remedy are to be taken only when prescribed by a physician if the problem is likely caused by a bacterial infection.
This is an effective runny nose remedy especially if you’re suffering from a cold as well. You must ensure though that the humidifier you are using is always clean and free from fungus.
With that said, in order to treat the post nasal drip, you will have to treat the illness paired with it as well. Minimizing your exposure to these allergens is still one of the best ways on how to get rid of post nasal drip. However, if you have the feeling that too much of it is gathering in the throat or dripping from the back part of the nose, then you have what is called Post-nasal drip. It is the accumulation of sticky phlegm in the nose and throat and is accompanied by a scratchy feeling in the throat that is often painful. It is a very uncomfortable feeling on the throat thereby making the one suffering from it to spit or swallow the phlegm. Rhinitis is characterized by having nasal congestion, itching ears and throat, red or watery eyes, sneezing and runny nose. It is necessary to get ear infections diagnosed and treated quickly, since leaving them untreated can lead to complications like mastoiditis (an inflammation of the bone next to the ear), loss of hearing, perforation of the eardrum, meningitis, facial paralysis, and Meniere’s disease (a disease that causes vertigo and ringing in the ears). Therefore, treatment is focused on relieving pain and other symptoms of the infection while it heals. Relieve the pain with a warm washcloth and get plenty of rest, and the infection will soon stop on its own. This hearing issue is called a Eustachian tube dysfunction, and it is a common, temporary problem that can last about a week and usually occurs during and after the common cold, or during changes in air pressure. This serves to equalize the pressure on either side of the eardrum, which allows the eardrum to vibrate and function properly.
Other causes include “glue ear,” when the middle ear fills with fluid (usually in children), allergies, other blockages to the tube such as enlarged adenoids, and changing air pressure in descending airplanes. Another method of clearing the tube is to inhale, then close your mouth and pinch your nose. It regulates the right amount of air pressure that comes with sound vibrations in the middle ear to produce and hear sounds clearer. It’s the same sensation as one feels when water is stuck in their ear that they jump for to release it.
Since the tube at this point is closed, air cannot flow inside the middle ear which causes an unequal presence of air in the eardrum. Since the eardrum is tensed, there is pain or discomfort in the ear.  Sometimes, there is something that fills up inside the ear.
When it happens, there is a great possibility that aside from the discomfort felt, a great damage might have been made to the ear. If there is either swallowing or yawning done, the Eustachian tube is exposed, permitting the air to go inside or outside of the middle ear which balances the air pressure on both sides of the eardrum.
This also remains true if one is flying, engaged in scuba diving or using an elevator that goes up high changing the altitude.
Unfortunately, this pain, pressure and hearing loss can last long after the flight is over. It will open about 400 times per day to equalize pressure in the middle ear with air pressure changes outside.
As the nose is pinched closed and air is forcibly exhaled the little tube may be forced open.
Anya researches travel with her frequent-flier-in-training 6-year-old son, who visited 17 countries on 4 continents before finishing kindergarten. A non-surgical Eustachian tube dysfunction treatment for this case involves decongesting with a nasal spray or taking a decongestant pill before takeoff.
This is a tested post nasal drip remedy in the home that can make the mucous thinner hence making them easier to eliminate from the body. This makes sure that the sinuses are in excellent working condition and less prone to infection attacks.
You or your child can take pain relievers like Advil or Tylenol, or use prescription eardrops. When there is a Eustachian tube dysfunction, the tube does not open properly, and the air pressure on the outside of the eardrum becomes greater than the pressure in the middle ear.
People suffering from this are encouraged to chew a gum to release the blocked air in the ear which is the most popular blocked Eustachian tube treatment. Garlic or Eucalyptus oil are also used to relieve a blocked Eustachian tube because like water and salt, it also has an analgesic and anti-inflammatory effects.
There is more air pressure in the eardrum compared to the lesser air pressure in the middle ear, pushing the eardrum to go inside, which stresses it out, causing it not to vibrate normally when a sound wave hits it.
There may also be Tinnitus or the presence of ringing or buzzing in the air that adds more to the discomfort feel. But the opposite happens when there is a Eustachian tube blocked in which the air pressure is different in both the middle ear and outside of the eardrum. The possibility of having a barotrauma also exists when a nose is being decongested with colds or allergies or when one’s upper respiratory tract is infected.
If left untreated, however, a dysfunction like this can result to tinnitus, hearing loss, vertigo and other complications. This way, when a certain runny nose remedy does not get you results, you can always make use of the next one. This significantly improves your nose’s resistance against bacteria and other irritants.
Patience and natural treatments should be enough to alleviate the symptoms of Eustachian tube dysfunction. The reason for a blocked Eustachian tube is when the tube itself malfunctions that causes force on the exterior of the eardrum.
These blocked Eustachian tube treatment element are often than not available in the household. Dizziness can also be experienced by the patient.  The symptoms appear and remain more or less a few hours and at most several weeks or more.
A more serious barotrauma is present which is congenital in nature when the condition occurs even before birth.
Fortunately, there is now a wide array of Eustachian tube dysfunction treatment available today.
This unequal air pressure causes sensations of dulled hearing and a “full” feeling in the ear, and can also cause ear pain and dizziness. If you are still unsure and you own an ammeter, test the current draw of the compressor at the compressor leads. If the knob has an "off" setting which stops the compressor from running, it is thecold control.In the absence of an "off" setting, the easiest way to tell them apart is to pull the plastic knob off the control.
The idea is to keep the compartment at a different temperature from the rest of the food compartment; a more optimum temperature for the particular food that you're keeping in these compartments. This is known as "sweating." So-called "Energy Saver" switches control small, low-wattage "mullion" heaters in the side and door panels that prevent the outside of the refrigerator from getting cool enough for sweating to occur. Air flows over it by convection; the warm air rises and is replaced by cooler air from below. Feel for a steady flow of warm air from the drain pan side; it should be obvious (see Figure 11). It has the veryimportantjob of directing airflow beneath the fridge, assuring that the condenser fan is drawing air over the condenser and not just sucking air in through the back of the fridge.
They are sealed units and cannot be rebuilt.Replacing the condenser fan motor can be dirty and difficult. When installing a new motor with bracket mounts, it may be easier to install the brackets loosely on the motor until you can locate the mounting screws in their holes. Thus, when trouble-shooting the evaporator fan, you must depress the door switch(es).Open your freezer door, depress all door switches and listen for the evaporator fan. Look first for a separate access panel or a tower within the freezer that houses the fan (Figure 14).
Check for anything that may be blocking the fan, including ice from a backed-up defrost drain or a frost problem. If nothing is blocking the fan and it still does not run, check for voltage across the fan motor leads (with the door switch depressed, of course.)If you have voltage across the fan motor leads, the fan motor is bad. Itcancause ice to build up in the internal ductwork.If you hear a "whistling" or "warbling" noise emanating from the fan motor itself or from the inside of the food or freezer compartment, it is probably coming from the evaporator fan motor. They don't cost much.REPLACING THE EVAPORATOR FAN MOTORIn replacing the fan motor, you must make sure that the rotation of the new fan motor is the same as the old one.
The easiest way to do this is to look for the shading poles on the old fan motor (Figure 16).If they are on opposite corners from the ones on the new fan motor core, it is a simple enough task to reverse the new rotor in its core. Do not remove the icemaker (if installed.)Look at and feel the panel covering the bottom or back of the freezer compartment. You will see a removable panel covering the entire back or bottom of your freezer compartment. Make sure the power is off the refrigerator before disassembling any lighting circuit.On some bottom-evap models, you may have to remove some of the plastic moulding around the door frame to access some of the evaporator panel screws.

This can usually be accomplished by placing a pan of very hot water in various places on the panel, or by blowing warm air on it with a blow-dryer.
Therefore, when you are diagnosing a defrost problem, it's a good idea to try to avoid melting the ice encasing the terminating thermostat until you've made your diagnosis.
If the thermostat opens before you've had a chance to see if the heater works, you'll have to by-pass it. There are many styles, but most are variations of the three types pictured in Figure 20.Aback-evaporatormodel is one with the evaporator mounted vertically against theinside back wallof the freezer compartment. These may be bottom freezer models, side-by-sides (Figure 17) or top freezer models (Figure 18.)Abottom-evaporatormodel is one with the evaporator mounted horizontally (flat) beneath a panel on thebottomof the freezer compartment (Figure 19). Does it have a fluffy (snowy) white consistency, or is it solid and clear-ish or slightly milky white-ish?Check the frostpattern. Or is it not frosted at all?On back-evap models, examine the drain pan directly beneath the evaporator. Is it clear, or is it filled with solid ice?Each of these symptoms indicates a different problem.
If you have lots of white, snowy ice, keep reading.4-5 DEFROST SYSTEMIf the frost is snowy and white in appearance, you have a defrost problem. The three main components of the defrost system are the defrost timer, the defrost heater and the terminating thermostat.4-5(a) DEFROST TIMERS AND ADAPTIVE DEFROST CONTROLIn most older refrigerators and some newer ones, a motor-driven timer (Figure 21) is used to stop the compressor and initiate a defrost cycle. If you have a Whirlpool or Kenmore refrigerator with a flex-tray icemaker, the defrost timer is integrated into the icemaker. This is true whether you are using the icemaker to make ice or not; it is running constantly to time your defrost cycles.
If you have a defrost problem and you have one of these machines, follow the instructions in section 4-6.Nowadays, refrigerators are being made as efficient as possible, due in no small part to government energy efficiency requirements. Defrost heaters use a lot of energy, so designers are mimimizing the total amount of time that the heater is energized. Such factors include ambient humidity and temperature, the water content and temperature of the food you put into the fridge, icemaking within the freezer, and how often the door is opened and closed.For example, if you go away on vacation for a week, the refrigerator door will obviously not be opened for a long time.
Less humid air will enter the fridge than if someone was at home, and opening and closing the door. Frost buildup will be much slower than usual, so the refrigerator will not need to be defrosted as often as normal. It also will not need to be chilled as often, so compressor run times will be shorter and less frequent.Designers are using microprocessors (on solid state circuit boards) to adapt defrost intervals and durations to compensate for differences and changes in operating conditions.
Such techniques are calledAdaptive Defrost Control, commonly abbreviated as ADC.To make decisions about the correct defrost duration and interval, the control board must have input about the conditions that the fridge is operating under. Each manufacturer uses a different logic scheme and different inputs, such as door open time, compressor run time, duration of the previous defrost cycle, and duration and intervals of door openings.Door open info is provided to the logic board by the door switch - the same one that controls the refrigerator's internal lights. For example, the ADC is programmed with a maximum amount of time that the heater can stay on; say, for 16 minutes. Often they are mounted under a cover plate or in a bracket that hides all but the advancement pinion.
The easiest way to recognize them is that the harness connection is always labelled with the compressor, defrost heater, L1 and L2.
The easiest way to see the heater is to look for the heavy, rubber-coated wires leading to it; one on each end. The element has no protective tubing and generally wraps around beneath the evaporator in a large "U" shape.You must exercise caution when handling these heaters to prevent burning yourself.
If that happens, you want to turn the heater off soon after the ice melts, to prevent the evaporator compartment from heating up too much. If theterminating thermostatsenses too high a temperature in the compartment, it opens, and cuts power to the heater. The thermostat will then stay open until the compartment again reaches a very low temperature. In other words, it waits to reset itself until the cooling cycle starts again.If the evaporator is more heavily frosted, the ice may not all melt within the time allotted by the timer. The heater will stay on until thetimerstops the defrost cycle, and restarts the cooling cycle.If you initiate defrost (turn the timer on) and the heaterdoes notheat up, then usually the heater or terminating thermostat is bad. If you initiate defrost and the heaterdoesturn on, then usually the timer or ADC board is bad, and you must replace it.To diagnose which component is bad, you must initiate the defrost mode, or test continuity through the defrost heater and terminating thermostat.
Within ten minutes (usually much less) you should be able to see a red glow from the defrost heater(s), which is (are) mounted beneath the evaporator.If you have an aluminum-tube heater as described in section 4-5(b), it will not glow red, but youwillsee ice melting away from its coils. Timers can get old, worn and coked up with dust, and may develop hard spots in the bearings.
If youdo nothear or see indications that the defrost heater is working, then it is necessary to investigate a little further.
If you cannot tell for sure, get the information for your model fridge from your parts man. DIAGNOSIS: DEFROST HEATER AND TERMINATING THERMOSTATIf you do not hear or see indications that the defrost heater is working, you could be looking at one of several different problems. The heatermaybe so icebound that it would takehoursfor the heater to melt enough ice for you to see the heater begin to work. If they are not connected to a terminal block, you will need to cut the leads to test for continuity.
Make sure you're not testing continuity across the terminating thermostat too; it may be wide open above 40 or 50 degrees. With glass-tube heaters, be careful that the glass is not cracked or broken and that you do not cut yourself.
It's cheap.If you have an ammeter, try to determine if the heater is drawing any power before you melt any ice.
In trying to find the heater leads, be careful that you do not melt so much ice that the terminating thermostat opens. If you suspect that the terminating thermostat might be open, temporarily bypass the terminating thermostat with an alligator jumper as described below.If you cannot find the heater leads, an alternativeis to check the current in one lead of the main power cord. Double-check this diagnosis by jumping across (shorting) the terminating thermostat with your alligator jumpers. If the two thermostat leads are not on a terminal block, you will have to cut the leads to jump the thermostat. Remember that it's a wet environment.LIFTING THE EVAPORATORIf you have a bottom-evap model fridge, replacing the heater will involve the delicate task of lifting the evaporator up to get to the heater. If you break or puncture one of those tubes, you're looking at a potentially expensive sealed system repair.Thaw out the evaporator as thoroughly as is humanly possible. Remove the evaporator mounting screws (if there are any) and gently lift up the end of the evaporator opposite the tubes.
Prop up the evaporator with a blunt instrument (I use my electrical pliers or a flashlight) and change the heater. Do what you went in there to do, but as much as possible, avoid moving the evaporator around too much.When you finish, gently lower the evaporator back into place. The hard tray is finished in a dark gray or black color and has rotating fingers that eject the cubes from the unit; the flex-tray has a white plastic, flexible tray that inverts and twists to eject, much the same as a manual ice cube tray would work. The hard-tray and separate defrost timer is by far the more common arrangement.This defrost system has the same components described in the defrost system in section 4-5, except that the defrost timer is integrated into the icemaker. However, the actual switch that controls the heater is accessible.Remove the icemaker and the evaporator panel as described in section 4-4. Take the plastic cover off the face of the icemaker and remove the three screws holding the metal faceplate to the icemaker head. Plug the icemaker back into its electrical socket and observe the drive motor in the upper lefthand corner of the icemaker head.
The defrost switch is the small, rectangular switch in the upper righthand corner of the icemaker head. Using electrical tape, tape it out of the way so it does not touch any other metal object in the icemaker head. Using your resistance meter, you should see continuity (and no resistance) between the empty terminal (where the BLACK lead was) and the PINK terminal.You should see NO continuity between the empty (BLACK) and ORANGE terminal. When the switch toggle is depressed, continuity will be just the opposite: BLACK-ORANGE-CONTINUITY, BLACK-PINK-NO CONTINUITY.
If the switch is okay, the problem is probably your defrost heater or terminating thermostat. Alignment of the gears is critical; follow the instructions that come with the gear sets carefully.
If you replace the motor, you will have to re-align the defrost timing gear mechanism.RE-ASSEMBLYIf you have not removed the defrost timing gear housing from the back of the icemaker head or the motor from the front of the head, you will not need to re-align thedefrost timinggear mechanism.
However, youwillneed to realign thedrivegear mechanism.Align the hole in the small drive gear with the alignment hole in the icemaker head and install the gear. If they do not line up perfectly, momentarily plug the icemaker in or apply 110 volt power to the two center leads of the plug This will turn the drive motor slightly. Lift the spring-loaded shut-off arm (ice level sensor) as you install the cam and let it rest in the cam hollow. Carefully install the metal cover plate, making sure the end of the wire shut-off arm (ice level sensor) is in its pivot hole in the metal cover plate. Make sure the icemaker is turned on (ice level sensor arm is down) or it won't make ice.4-7 HOT GAS DEFROST PROBLEMSIf you have a refrigerator with a hot gas defrost system, the defrost mechanism is somewhat different from those described in previous sections of this book. If you suspect that you might have a hot-gas defroster but you are not sure, ask your appliance parts dealer. Most of these refrigerators were built before 1970, but not all.The main difference in a hot gas system is that there is no electrical heater or separate terminating thermostat.
The defrost cycle is controlled by a defrost timer similar to the one you'll find in electric defrost systems, but the timer controls asolenoid valveinstead of aheater.
These units have a temperature sensing bulb, similar to that found on the cold control (see section 4-9 and Figures 21 and 33) as a part of the timer.
Its function is to sense the temperature of the evaporator so the defrost mechanism knows when to shut off.Troubleshooting a defrost problem in this system involves two steps. Wait and watch your evaporator for 10-15 minutes.If the frost starts to melt, then your defrost timer has gone bad. Thoroughly melt the rest of the frost from your evaporator and replace the defrost timer.If the frost doesnotstart to melt, then your defrost solenoid is probably bad. Fortunately, the defrost solenoid is usually designed so the electrical coil can be replaced without cutting into the sealed system. Trace the Freon tubing until you find electrical wires joining the tubing at a certain point.
UNEVEN FROST PATTERNS, OR NO FROST AT ALLThe evaporator should be bitterly cold to the touch. If the evaporator is either slightly cool or not cold at all, and your compressor is runningconstantly(not short-cycling; see section 4-9) you have a more serious problem. The same diagnosis applies if just the first coil or two in the evaporator is (are) frosted and the rest are relatively free of ice or perhaps even lukewarm.What's happening is that the Freon is not getting compressed enough in the compressor.
This could be due to two causes: either the amount of Freon in the system is low, or the compressor is worn out.
Itmayonly require recharging the Freon system, which, depending on the refrigerant used, may cost you a little, or a LOT.
I have only seen one exception to this diagnosis, and this is described in section 7-2.Don't let the age of the refrigerator affect your diagnosis.
Not too long ago, one of the largest appliance companies put out a series of refrigerators with compressors that were either poorly designed or poorly constructed; I never did find out which.
These were their giant, 20 to 25 cubic-foot flagship models, with techno-marvelous gadgets like digital self-diagnosis and ice and water in the door, and they were built with compressors that wore out within 2 years.Fortunately, the biggest and best companies warrant their refrigerators for five years or more, so these refrigerators were still covered under warranty.
COLD CONTROLIf your refrigerator is cold but not as cold as usual, and you cannot trace it to any of the other problems in this chapter, your cold control may be defective. To test its cut-in and cut-out temperatures, you can try putting the capillary bulb in ice water and measuring the temperature with a thermometer, but it's a wet, messy, job and it's difficult to control the temperatures.
The capillary tube is the liquid-filled temperature-sensing element of the cold control, and operates in the same manner as a thermometerbulb; in fact, the end of the capillary tube may have a bulb. The tube and bulbmaybe coiled right next to the cold control, or they may be led away to another part of the compartment.If you are justtesting(electrically) the cold control, you can jumper directly from one wire lead to the other. By doing this, you are closing the switch manually, and assuming the machine is not in the defrost mode, the compressor should start.If you arereplacingthe cold control, it will be necessary to trace where the capillary tube goes, and remove the whole tubewiththe cold control.

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