Whirlpool french door refrigerator evaporator freezes about every 6 or 7 months

SOURCE: Amana French Door Refrigerator "on" but no cooling; freezer still works

There are 2 possible problems. One is the defrost cycle is not working properly this is usually indicated by a large amount of frost on the back freezer panel. If so, the circuit will have to be repaired and the evaperator thawed to remove the ice build up. The other is the fresh food damper is not working properly this is behind the "lump" in the back of the fridge compartment above the top shelf, remove the louver panel to see if it is open or closed. closed will be warm open should be cold. The water dispenser reservoir is probably frozen due to poor air circulation.

SOURCE: Whirlpool s/b/s refrigerator - water not evaporating on freezer side - collects & freezes under bottom food bin

Did any of the repairmen replace the heater which is at fault or did all three of them change it? If it has not been changed then I would suggest that it should be. If it continues to be a problem then you can get drainline heaters added to the system but you would need to talk to a fridge guy before they wasted a journey. The other possibility is that the front cover is not inside the drain pan or a leak in the drain pan, and if you have an icemaker you could even get water coming from further up the cabinet. Either way I would suggest picking your favourite of the three and tell them that the problem is unresolved. Most fridge guys offer some sort of warranty on work that they do. Hope this is of some help.

SOURCE: Kenmore 596.73502201 Not cooling. Compressor , fan, seal ok

If the refrigerator isn't cool, you need to answer some questions, then see if the compressor is running.

First, answer these questions:

• Is the refrigerator completely dead? If so, see “It's stopped completely.”



• Is the thermostat knob turned to the proper setting? If not, reset it.

Next, see if the compressor motor is running

The compressor is a football-sized case with no apparent moving parts. It's on the outside of the refrigerator at the back near the bottom. If it is humming or making a continuous noise and your refrigerator is still not cooling, there may be a more serious problem with one or more of several different components, we recommend contacting a qualified appliance repair technician for further help.

If the compressor is not running but you do have power to the refrigerator, there may be a problem with one or more of these:

• The compressor



• The Thermostat



• The overload, relay, or capacitor



• The defrost timer



• The condenser fan motor

Cooling is poor For an overall understanding of how refrigerators should work, read about refrigerators in the How Things Work section of our website. A refrigerator or freezer that is cooling, but cooling poorly, may have a problem in one of several areas:

Evaporator coils
Condenser
Poor cooling is often the result of a heavy frost build-up on the evaporator coils or a condenser that is clogged with dust, lint, and dirt. 

Evaporator coils Poor cooling is often the result of a heavy frost build-up on the evaporator coils. You can't see these coils without removing a panel on the inside of your freezer. A sure sign that there is a build-up is the presence of any frost or ice build-up on the inside walls, floor, or ceiling of the freezer. Such a frost build-up usually indicates a problem in the self-defrosting system or damaged door gaskets.

The refrigerator is supposed to self-defrost approximately four times in every 24 hour period. If one of the components in the self-defrosting system fails, the refrigerator continues to try to cool. Eventually, though, so much frost builds up on the evaporator coils that the circulating fan can't draw air over the coils. There may still be a small amount of cooling because the coils are icy, but with no air flow over the coils, cooling in the refrigerator compartment is quite limited.

Here's an inexpensive, though inconvenient, way to determine if the problem is with the self-defrosting system. Remove all of the perishable food from the refrigerator and freezer, turn the thermostat in the refrigerator to Off, and leave the doors open for 24 to 48 hours. (Be sure to have several towels ready in case the melting frost and ice causes the drip pan to overflow). This allows the refrigerator to defrost "manually." When the frost and ice build-up has completely melted away, turn the thermostat back to a normal setting. If the refrigerator then cools properly, it indicates a problem with one of three components in the self-defrosting system:

• The defrost timer



• The defrost thermostat (also called the bi-metal switch)



• The defrost heater

If it still does not cool properly, there may be a problem with the refrigerant level or the compressor. You may need to consult with a qualified appliance repair technician to further diagnose the problem 

Condenser Self-defrosting refrigerators all have a set of coils and a cooling fan, usually under the refrigerator, that need to be cleaned regularly. If these coils get coated with dust, dirt or lint, the refrigerator may not cool properly. The coils may appear to be a thin, black, wide radiator-like device behind the lower kick-panel. To clean them, disconnect the refrigerator from the power source, use a refrigerator condenser brush (see the Appliance Accessories section) and your vacuum cleaner to clean the coils of any lint, pet hair, etc. You may not be able to get to all of the condenser from the front, it may be necessary to clean the remainder of the condenser from the rear of the refrigerator. 

SOURCE: My LG bottom freezer, french door evaporator fan

Defrost heaters are not coming on. Check with multi meter..is it frost, or ice freezing under the fan-blades. That my friend is a blocked drain hole. Otherwise ohm out defrost heater should read 30to69 ohms of resistance. Timer may be stuck, or a hi-temp safety switch is not closing (a small disc at the top of the coils) when it comes out of defrost. Carweful with that gun, Jim! Too much heat warps all that chinese plastic. Chris in bigbEar

SOURCE: evaporator coil freezing, replaced main control

It is possible you have a defective fan motor in the condenser area or evaporator area. Sometimes when they become defective they will run for a while and just warm up and stop while the compressor continues to run. I learned that one on four costly returns to the home. The cost was to me not the customer. Thanks, Sea Breeze