[rozimek]

Coming to my wit's end with continually defrosting the coils with blowdryer.
Had repairman come a while back & he replaced defrost thermostat & heater I belive.
Problem resumed, after 60 days thus no warrenty (spent $300) & was not about to pay that again.
I turned to your very helpful site & thus ordered both a SUB 61005988 (DEFROST ASSY., ADAPTIVE) board & a Defrost Heater and Thermostat Assembly after reading many helpful posts on frosted coils.
I unfortunately still have the problem after installing both parts.
Please provide some guidance as to how & what to test?
Cold air does blow into the frig till it gets choked by the coils after 5 or 6 days at which point I once again take out the blowdryer.
I have a meter & can test but do not know how.

Thank you,
Roman

[woodchuck]

Your owners manual should tell how to force it into defrost mode with the board to test the heater and defrost thermostat.

[rozimek]

Ok Can you please direct me to the right service manual to purchase?
Jenn Air
Model # JCD2389GEW
Serial # 10509587ZF

L1 wire I know but what is test wire? Which color?Thank you
Another post for same problem.
Can I test the heater by the following?
Unplug the fridge and remove the light shield and the temperature control housing.
Connect the refrigerator to a watt meter.
Make sure the compressor is running.
Using and insulated number 22 jumper wire short between L1 and test, this will put the refrigerator into a defrost for approximately 23 minutes.
The watt meter should read between 500 to 600 watts depending on the model.
If you don't have a watt meter you will have to watch for the heater to come on.
Make sure the freezer is cold so the bi metal is closed or this will not work.

[woodchuck]

That does sound like the instructions. Each model may be a little different, so I don't know which is test. Like it said you can just watch the heater to see if it works and not have to do the other disassembly.