For several months the fan seemed to have a hard time getting going, like it wanted to run, but sometime couldn't. Then it just stopped and now the ice cube maker doesn't work correctly, the frost builds up and the bottom section is not cold enough. Please advise. Thanks, Blair A. Raffel
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Re: fan in freezer - evaporator fan?
HI. thanks for the question. yes the fan in the freezer must be replaced.and also the drain tube in the freezer, is clogged. cut power to the fridge. remove back panel . replace the fan motor . also clean ice build up. clean drain tube, from freezer to the drain tray, at the back, near the compressor. thanks the appliance doc. please rate my answer. thanks
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If the fan in the refrigerator (evaporator fan) isn't working properly your machine isn't going to be as cold as it should be and your ice maker won't work properly as well. This is due to the fact that the ice maker has a sensor in it and it won't produce ice unless the sensor tells it is lower than 10 degrees F. A rule of thumb is if the condensor fan motor is running, which is the fan located by the compressor, than the evaporator fan should be running as well. Now, with that said, there evap fan is tied into what they call a bi-metal thermostat. Depending on the brand these sometimes go bad causing the fan not to run, but that wil cause it not to work at all. If its working intermitantly, than chances are the fan motor is bad.
Replace the fan, Remove the evaporator cover in the back of freezer, and probably another cover for the fan. Unplug your refer first. Usually their are two screws holding the fan bracket to the wall or mount. disconnect the wires, and replace. Their is a newer model evap fan motor that does not have wiring terminals to disconnect, it is hard wired together and you have to practically remove everything in the freezer compartment to get at it. You have to cut wiring and splice the new fan motor in. Fairly tough job. Usually an evaporator fan motor bearing fails from the refer being moved or in storage for a few days at least with the doors closed and the unit unplugged. This allows all that moisture that was in the freezer to get into the metal parts of the fan motor and cause this problem. To prevent this always block the doors open if your refer is going to be off for a few days. This will allow the unit to dry out without damage. Sometimes it was just a bad motor from the factory. Good Luck, Appliance Specialists
Your evaporator coils frost up in normal use
and every eight hours or so the entire unit shuts down and the defrost heater
comes on to melt the frost. This cycle last about 20 minutes. The melted frost
drips into a drain pan and through a drain tube to the drain tray under the
freezer/refrigerator where it's evaporated by the condenser fan.
Your drain tubemay be stopped up with ice at the upper end
because it drains too slow because it's stopped up at the lower end in the
evaporator pan under the unit at the floor. It can get dust and mold in it.
Once you get the ice out at the top a little pressure with a turkey basterwill usually clear it out. Flushing
it out with hot water and clorox may help. Make sure it drains quick enough
to prevent refreezing. . The drain should be located below the evaporator coils
on the lower back of the freezer. The fridge gets its cold air from the freezer through a vent(damper)
between the freezer and fridge.The fan in the freezer blows air through it.
Make sure this fan is running. You may have to hold the door switch in for it
to run. There is a flap you adjust with
the fridge temp. control. Make sure it's opening and closing when you adjust
the fridge temp. The problem could be the electronic control if
you have one or the mechanical linkages.
It sounds like your evaporator fan motor, they last about 4-5 years. Try to see if the buzzing noise comes from the motor, usually in the freezer compartment behind a vented cover plate
The freezer is usually cooled by the compressor, the fridge is then cooled by an evaporator fan motor ($30). If this fan seizes or slows down then the fridge warms up (it sometimes starts squealing before this happens). It could be that your drain hose is clogged or frozen. Maybe the temperature adjuster go bumped.
If you think it is the evaporator fan motor:
Check to be sure you can get a replacement fan first, they last about 4 - 5 years. Can get from a parts supplier or electric motor company.
UNPLUG fridge. Located usually in top of freezer behind a vented cover plate. Remove cover, remove screws holding fan in, may have to cut wires. Replace with new motor, make sure the fan pushes air into the freezer area and doesn't spin backward drawing air from the freezer area.
On some models the fan will not turn on until the door closes. Also make sure you DO NOT have the refrigerator set to the coldest setting. This actually isolates the refrigerator from the freezer and only the freezer gets cold. It works the opposite and most think. The fan in the freezer (evaporator fan) is normally operated by the defrost control board. That may have failed. If you have replaced the fan already chances are that it's good but you may want to inspect the Defrost control board. Sometimes there's a few resistors that will appear burnt up and discolored. Sometimes you don't see anything at all. That board pretty much runs the whole show and set's different fan speeds, defrost times etc. It's called the electronic control part#PS969091 it sells for about $356.42. All in all I have not heard great reviews about this product. Hopefully it's something simple and not the board but it's a good place to start.
it sounds like the timer is going bad.... there is a timer that runs the fridge for 6 hrs. and defrosts for 20 mins. if the contacts are pitted ,it will run for shorted periods ..... this timer can be located anywhere from behind the unit where the compressor is to inside the regrigerator compartment ...