Hello. The freezer keeps frosting over. I replaced the automatic defroster thermostat and it helped a little bit. The old part was rattling and this one is solid. Now it freezes over slower but still needs to be defrosted every few days. Do you have any ideas on where to go next? The model number is KSSS42QDW05 if that helps. Thanks for your valuable time! Also, is it normal for the fridge portion to get warmer if the freezer is not on? This causes a huge problem when I have to turn the freezer portion off to defrost it!
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Where are you getting frost at? Is it on the back wall in the freezer? if so - your problem may be a defrost issue and in that case you would need to hire a professional appliance repair technician to service your refrigerator.
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Hello, That is going to be a problem with one of the components in the automatic defrost system. It is supposed to automatically defrost. Turning it off overnight to melt it will defiently help. If you are mechinacally inclined here is what to check.
DEFROST HEATER ...remove back wall of freezer and you will see a black heater at the bottom of the coil thats frosted up,it looks similar to the bake element in your oven,or in some cases it is going to be a spiraled wires inside of a glass tube. To check it,use a multimeter set to the lowest ohms of resistiance setting and follow and find the wires at the top of that frosted coil,unplug/disconnect those wires and check for continuty with around 5-20 ohms of resistiance. If it has that amount of ohms the heater is good. If your meter display does not change or displays OL the defrost heater is broke and needs to be replaced
DEFROST TERMINATION THERMOSTAT... it's round and has 2 wires and clips to the top of that frosted up coil. IT MUST BE CHECKED WHEN COLD SO BEST TO DO WHEN FROST IS STILL BUILT UP. To check it disconnect the wires on it and check for ZERO ohms of resistiance. As with the heater if the meter display OL or doesnt change,it is the problem
DEFROST CONTROL...it is hard to check for a semi unskilled person and if the heater or defrost t-stat check good its going to be the problem. It will NOT be in the freezer it could be on back wall or inside the control panel in the refrigerator section.
Check freezer fan is working. If mechanical fault,replace fan. If it's struck by frosting behind the freezer, defrost the fridge by unplug the unit. To keep automatic defrost in time, keep temp between 3 and 5 degree. Check timer, thermostat an defrost heater working properly. Turn counter clockwise thermostat, if fridge shuts off, it's o;k. And also check heater with 120 volts directly and working alright or with continuty check if closed it's working. Thanks.
The defrost cycle is suppose to be automatic on this model. To see if you have a defrost problem take the lower container out of the freezer, and empty the bottom shelves enough to see the back panel inside the freezer. If there is a build up of frost on the panel or the slots in the lower back panel the automatic defrost is not functioning. The most likely suspect is the ADC or automatic defrost control. This control runs about $120.00 and is located in the console of the fresh food section (top).
If there is no frost check to see if the fan in the freezer is running. If the fan is not running you have a failure of the fan motor which is a little less expensive but a bit more challenging to replace, the shelves, the shelf slides and back panel of the freezer have to come out to replace this motor.
Check rear wall of freezer by feel for frost. Heavy, even frost indicates likely problem in the defrost system. Unplug unit. Defrost heater (in freezer behind rear wall panel), defrost thermostat (same area-must be checked at freezer temperature) or Defrost timer-located lower back outside of unit. Near compressor. Do continuity test on heater and defrost thermostat and if they show continuity (good), replace defrost timer. If not, replace the one that tests bad.
Defrost coils fully. Reassemble.
Please let me know if I have helped with comments and rating.
Refrigerator will work about 7-10 days after being defrosted until thick frost builds up again cutting off air flow to both compartments
If the door has a gap, certainly ice build up will occur on the evaporators and block the air flow which will just accumulate more and more if you don't defrost it first. make sure the doors always shut.
if you have frost build up on rear wall of freezer section then your unit is not going through defrost. its either defrost heater, defrost thermostat (which are both located on evaporator) or defrost timer
If you look at the rear wall inside the freezer compartment down low and find a bunch of frost on that wall, you have an automatic defrost system failure. The most likely part that has failed is the defrost thermostat. It is located on the top of the freezer coil, clipped onto a piece of tubing. It will have 2 wires coming out of it and it is about the diameter of a quarter and about 3/4" tall. To test this part you would need a test meter and enough skill to check if the contacts are closed when the thermostat is frozen withing the specifications stated on the thermostat. I believe yours would close at 25 degrees F and opens at 47 degrees F. Part # 5303918214
I hope this helps you. supertechks
It sounds like the defrost timer may be bad,or you might want to ohm out the heater itself. And the only othe part is the terminator witch sounds like you replaced that allready. I would check the heater and if that is good replace the timer itself. Hope this helps