View single post by Dlecocq
 Posted: Thu Oct 6th, 2005 07:33 am
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Dlecocq

 

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Hi

Thank you for your quick reply. My fridge is a Jennair, side x side, JCD2289ATW and is building frost over time. Following the provided instructions, I did the tests.

When thawed, the resistance was 20 ohms (I assumed the thermostat is closed as explained); when frozen the resistance was 240k ohms with variations as I recall it (meaning open). I did additional tests on this resistance thing as follows:

Test 1A

Fridge compartment, fridge plugged in the electrical outlet, freezer control to off position but with lots of frost on the coil.

Meter on 2000 k ohm,

Common (black) on blue wire (at the connector level) and red on yellow terminal of ADC

I read Minus 240k ohm with variations

Test 1B

Common (black) on yellow terminal of ADC and red on blue wire (at the connector)

I read 550 or so.

Test 1C

Common (black) on yellow wire and red on blue wire near the Coil in the freezer

Common (black) on blue wire and red on yellow wire near the Coil in the freezer

Same results as Test 1A/1B

Test 1D

Unplugged the defrost assembly and tested the assembly only

I read 243k ohm.

 

The reading I did between L1 and Def Htr was on the AC scale of the meter set at 750V. I tested again, as follows.

Test 2A

Fridge plugged in the electrical outlet, freezer control to off position.

I read 120v.

Test 2B

Freezer control and refrigerator control to mid position.

L1 and test briefly jumped to trigger defrost (as in Jackpai’s explanation)

I read 0v.

Test 2C

Freezer control and refrigerator control to mid position.

Not in defrost cycle.

I read 0v.

Your explanation seems to apply to my tests but I’m puzzled by Jackpai’s explanation because different results are obtained. Being a novice at electronics, I may not have completely understood Jackpai’s test!

Can the fridge be plugged-in, in defrost cycle and have the freezer control in the off position, all at the same time and read 120v?

 

I checked the new relay and found out it is the twin brother of the original (JW1FSN-DC24V).

I’m at a loss here! Do you have more tests to recommend? What do you think is the culprit? Is it the terministor? And where is this thing located?

Is the evaporator fan always on?

Many thanks in advance!:huh: