Kenmore fridge acting strange

[rego]

Model: 10676232402
Customer complaint: fridge was at 50 degrees and ice cream was getting warm, they unplugged it once for a couple minutes and it worked for a few days.
Initiall look over: condenser fan running, compressor not running, evap fan not running, they recently cleaned the cond. coils.  uplugged let sit 30 seconds then back on...same scenario.  Unplugged for 30 seconds turned thermastat off and pluged back in, could hear ice cracking in evap. section assumed it was defrosting.  pulled fridge out checked for 120 at compressor- good, start relay sounds good, compressor is hot but not out of hand, ohmed out comressor R & S at 7 (1-6 per spec.) C 13 (6-11 per spec.) little high but figured it was ok, all open to ground.  Put back together and plugged back in click and started running.  Checked evap fan still not running and compressor had shut down but cond fan still running. took off back panel of freezer and looks good little ice in vent cleared that out.  Went to ADC good voltage to it some voltage's speratic per schematic from what I could tell (never had to test one indepth before) .  shorted 1 & 2 and it went into defrost with cond. fan still running.  Decided I would try a new ADC in case something was screwy with it put everything back together to go get the part and everything took off running perfectly.  Waited about 20 minutes and still everything great both fans running, compressor running, good air flow and temp's dropping.  Have no idea what I did whether it was a loose connection that I somehow tightened or what.  Told the customer to watch it for a few days and let's see what happens.  Still wondering if I have a bad ADC, loose wire in the harness somewhere or weak and almost dead compressor.
Any thought's? Thanks

[JWWebster]

Bad ADC

[rego]

That was my feeling JW, just needed a little reassurance.  have not heard any bad news from customer yet but expect it.  Will follow up with them on Monday if I don't hear anything.  First one that crazy for me...learn something everyday!

[AJ]

First one that crazy for me

If you stick with it long enough there will be more, lol...

[rego]

I'll stick with it...I refuse to let an inanimate object defeat me
Thanks for the help folks!

[MajorApp]

Yeah, you don't want to be outsmarted by a glorified cooler.

[UncleRodge]

I agree with JWWebster:  It sounds like a bad ADC board - I had one recently that would not defrost...

Just a side note:  Take a close look at the ADC board - I found one recently where a one leg of a capacitor that was rusted into..... replaced the capacitor  (22uf-160v blue) with one a little bigger but still within the variance needed.   Been running for several weeks now as designed!!  I have replaced several thru the years but this was my first repair of these, but I will check them all in the future....

Now this was a Fridge I have for re-sale - If I were working on a customer's fridge, I would advise them of the repair and give them the option to fix the board or replace it.....

Just my two cents!  New to the board, but have 15+ years repairing.... Hope this helps!!

UncleRodge

[AJ]

Hi UncleRodge, welcome to our forum.

Good to know about the capacitor, thanks!

Be sure to check out this topic too.

Technicians: Let's Talk Service - Appliance Repair Business


Just let me know if you would like to join us in the 'Let's Talk Service' board. 

[AJ]

That was my feeling JW, just needed a little reassurance.  have not heard any bad news from customer yet but expect it.  Will follow up with them on Monday if I don't hear anything.  First one that crazy for me...learn something everyday!

Did the new ADC end up doing the trick then? Was it still working when you checked back with them?

[rego]

I talked with the customer and it's running great.  I told her I still think the ADC will need to be replaced and to call me as soon as she start's to see warmer temp's.

Thank's for the info UncleRodge

[UncleRodge]

Any updates there rego?

[rego]

Nothing, must still be running well.  I did have a repair the other day where it took me forever to find an icycle formed on the thermistor, If I remember right I had some ice fall out of the venting in this unit and am wondering if I may have had the same situation.  Never gave it a thought until I found the second one reading an icycle.