I have a Westinghouse side by side wse6070sa for the Australian market so not sure whether you will find this model on the US market. I have had it for just over a year and recently I started to notice that the freezer temperature alarm would go off and the freezer not staying cold. I had read a few posts and decided to have a look at the back panel of the freezer and realised that frost was forming. I then opened the back panel and the top part of the evaporator coil has frosted over. I have tried to defrost it with a hair dryer and then plugged it back it only to find that after 4 hours of operation that the freezer temperature alarm to start again.
I am not sure how to diagnose the problem. I have read that the control board controls the defrost process but how do I know that it is faulty? How do I know the thermostat is problematic? How do I know that the heater is faulty?
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Re: Evaporator coil freezing.
Sounds like either you need to thoroughly clean the evap coil, then restart and see if you hear a gurgling noise inside unit and if coils begin to frost again, then you could be low on freon/refrigerant
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ne of the most common reasons for the freezer to start failing is called "frost free failure." Ice can build up on the evaporator coils over time, and this ice builds up until it starts blocking the fan. The fan is responsible for circulating cold air throughout the freezer, so if it is blocked the freezer will not be able to freeze any food. You can usually check this by removing an access panel in the back of the freezer to inspect the coils. If ice is built up on the coils, a hairdryer can assist in defrosting them
Make sure drain hose is not clogged up. Check evaporator fan, (small fan in freezer compartment). it should come on after door is open a couple of minutes. Feel air vents in fridge side for a stream of cold air, if none or too weak, remove back cover (where fan is) and check for frozen evaporator coil. If evaporator is frozen, air can't circulate thru unit, keeping fridge side from cooling and freezer side below freezing point.
If this is the case, unplugg unit from power outlet, and use a heat gun or hair dryer to melt ice, make sure all vents are clear.
Once the evaporator coil is free of ice, dry freezer, replace back cover and plug unit back on. Check temp. settings, should be about 1/3 of the dial range. If necessary, make additional adjustments every 24 hrs.
The coil freezing can be caused by a couple of things. 1) Not enough air flow over the coil or 2) A low refrigerant charge. First make sure that the indoor fan is running. Then check your air filters and make sure your evaporator coil is clean. After that you can get the refrigerant charge checked. The lower the refrigerant pressure is, the lower it's boiling point is and when it gets below 32F then the evaporator coil and usually the low pressure line freeze up. The leaking you were talking about is probably from the ice melting. Hope this helps.
It sounds like the evaporator fan is hitting ice that is built up on the evaporator coil. When it's making the noise, open the freezer door and see if it stops.
(Most models are wired so that the evaporator fan cuts off when the freezer door is open.)
Check the inside back, lower panel of the freezer for ice built up or frost on it. If there is, you have a defrost problem that is most likley a bad heater. It's located around the coil inside the freezer behind the panel you will be looking at. The defrost problem would explain the freezer not freezing ice cream.
Is the compressor motor running.If no check starter/overload
relay. Check to see if the
condenser fan at the back underneath near the compressor is running. If no
Are the condenser coils near there warm or room temp. should
Is the evaporator fan in the freezer running. It blows cold
air into the fridge side through a damper in the wall between the freezer and
fridge. Make sure the damper is open.
Below the evaporator fan is the evaporator coils. Remove the
back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL)
or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR
Hi, The most common problem is the defrost heater. It is attached to the bottom of the evaporator coil in a bracket.
If you have a meter, you can remove the element from the coil and take the two wires off. Checck the post on the element that the wirea attach to for continuity. If the element is good, it will have continuity to it. If the element is ok, check continuity on the bi-metal switch attatched to the top of the evaporator coils. It too must have continuity to be ok and it needs to be tested while still cold.
I hope this helps you. Please let me know if I can assist you further.
Your refrigerator has a Control-defrost,adaptive timer ,PC board part number 241508001 This is providing your model is the one listed above your post WRS3R3EW. The model you listed in post does not come up. Until we can determine that the freezer is not defrosting you need to unplug and remove the back panel of freezer compartment to see if the evaporator coils are frozen or clear. If frozen this alone will cause a chain reaction that keeps vents to fresh food compartment open and cause freezing in that area. Go to link below and enter model number WRS3R3EW0 Then you will see a list of diagrams on left side, chose #11 this will show the control parts. Click link below Thanks, Sea Breeze We offer free help and assistance also.