Customer said that ” Feezer works fine. Its cold in there but the refrigerator is warm. ” I have handled this symptom before on other manufacturers but dont want to assume same cause. Usually frost build up in evaporator coils in freezer section which constricts airflow to fridge section. Should I test defrost heater before testing defrost thermostat or defrost control ?
Kenmore fridge
Model Number
106.57036601
What have you tried so far?
Customer said that ” Feezer works fine. Its cold in there but the refrigerator is warm. ” I have handled this symptom before on other manufacturers but dont want to assume same cause. Usually frost build up in evaporator coils in freezer section which constricts airflow to fridge section. Should I test defrost heater before testing defrost thermostat or defrost control ?
Refrigerator Kenmore
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semperfi asked 3 days ago
Answers (1)
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Hello
You need to check first if their is a heavy even frost build up on the coil. Then next do a continuity test on the heater. If the heater has continuity, then check the defrost thermostat. If the heater and therm. are good then replace the adaptive defrost control.
Information Links
106.57036601 Manual Sears refrigerator | Adaptive Defrost control | 4388932 Defrost control video
If I had the ability to post photos of my findings I would, just to give you a better understanding of what I have been looking at.
In the freezer section, I removed the back wall to get to the coils, defrost heater, and thermostat. However, I had noticed that (even before I removed the cover) there was not much frost build up on or around the coils to indicate blockage of air passing. There was a very light coat of frost towards the bottom half of the coils near the floor of the freezer and no frost as you moved up towards the top of the coils. Would it be fair to assume that this would be a fair indicator that the defrost heater and thermostat would seem to be working fine since no frost (or little frost ) present ? Should they be
Checked for continuity anyway ?
Also, up on top, on roof of freezer, near the icemaker, there was a “ Whirlpool 2255114 Refrigerator Ice Maker Optics Control Circuit Board “ that had a red blinking LED “. I removed this control board out of its socket inside the freezer wall to test it with a meter. It was not reading anything. No ohms from any pin combination. Should the RED BLINKING LED be telling me something different ?
Would this board in the freezer near ice maker be contributing to the refrigerator side being warm ?
You had suggested to replace the Adaptive Defrost Control Board 4388932 which is located in a completely separate compartment casing on the ceiling top of the refrigerator side. Would this
Adaptive Defrost Control Board be a last resort fix or should I automatically assume that since there was no real indication of major frost build up from coil area that the heater and thermostat are both ok
And that the problem could only be the Adaptive Defrost Control Board ??
- Guest asked 8 years ago
It is hard to see the frost pattern in the pictures. If you follow the line coming into the evap where your frost starts, and it stops frosting at some point through the rest of the evap, you could have a leak in the system or a faulty compressor. The emitter and receiver boards for the ice maker do not have any effect on temperatures. The red flashing light on the ice maker board will indicate an error code if one is present. These error codes and ice maker diagnostic information is located on the tech sheet. I have attached tech information on the ice maker. Back to the temperature issue. Is this how you found the evaporator frost? If so and this unit has been on and running for more than 5 days, then you do not have a defrost issue. So you do not need to change out your adaptive defrost board. IF this unit has been thawed out recently, and there is a defrost issue, it will show back up in about 5 days. It takes that long for enough frost to build back up before blocking air flow. Did you have heavy frost on the evap? What are the temps in this unit? DO you have good air flow to the refrigerator section?
- Brian, Ace Appliance answered 8 years ago
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From semperf:
“I don’t know what you would consider a fridge coil that has “partial frost pattern”.
Please evaluate these photos and relay your views, thanks !!”
https://www.dropbox.com/s/dop2nygcqom5e9r/20160625_153423.jpg?dl=0
https://www.dropbox.com/s/npb8hhb7z30a0cl/20160625_150450.jpg?dl=0
https://www.dropbox.com/s/mcl6ivj8md4gsrb/20160625_144418.mp4?dl=0
https://www.dropbox.com/s/u0j2kugm48y0h75/20160625_144403.jpg?dl=0
https://www.dropbox.com/s/ycglikjxzts3exq/20160625_144154.jpg?dl=0
https://www.dropbox.com/s/jxdwgue1k1m1n2c/20160625_144142.jpg?dl=0
- video answered 8 years ago
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Hi. What are your temperatures in each section? This seems odd to have a partial frost pattern and your freezer has good temperatures. A partial frost pattern is an indication of a sealed system issue, but you would be reading warm temperatures in the freezer. If your freezer temps are good and your refrigerator temps are warm then you have restricted air flow somewhere. This could be in the return or supply vent, or dampener. Or your evap fan motor may not be running. Check your air flow system.
- Brian, Ace Appliance answered 8 years ago
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