My refrigerator compartment quit cooling and I am trying to troubleshoot it. I have performed the following tests and and am looking for confirmation I am replacing the correct parts. Thank you for your help.
- Condenser fan and compressor both running.
- Fan coils below refrigerator are clean and free of dust. ec.
- Checked for evaporator motor running in freezer, it is running
- Freezer is plenty cold.
- No frost build up on coils in back of freezer compartment, so I think defrosting is working.
- No air flow through diffuser. Diffuser/air damper is closed.
- Bottom return air vent from fridge to freezer is open.
- Removed 2 thermistors from wiring harness next to air diffuser. one from freezer compartment and one in fridge compartment.
- Checked resistance. From the tech support people at Appliance Parts. at 36 degrees should read 29500 ohms- the actual reading is 8200, reading at room temp should 11200 actual reading is 3600.
- If I shut down the whole fridge at the power button inside the fridge and then power it back on the air diffuser damper will open, but then close again.
- I am assuming this is due to the failed thermistors?
- The air diffuser damper assembly is OK, I assume since the damper can open and close. But is remaining closed due to bad thermistors.
- So if I replace both thermistors, will this correct the problem with the dmaper remaining closed?
- Or do I need to worry about an issue with the main control board?
I hope someone can help. I feel like I am close and can repair this myself but am looking for some knowledgeable guidance.