Author Topic: Samsung Compressor Dead?  (Read 791 times)

Offline alxf001

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Samsung Compressor Dead?
« on: March 15, 2014, 12:50:32 PM »
I posted before, but believed i have since narrowed down my problem.  I have a 6 year old Samsung RM257ABRS (Quatro) that stopped working about a month ago. I came back from a 5-day vacation and found my fridge to on, but not cooling.  The compressor was not running and i have not been able to get it to come on since.

I started by checking the compressor.  I checked the resistance between the windings, each was 11.0, 11.0 and 11.1 ohms, the trouble shooting guide that someone provided to me here (thank you) said they should be approximately 10 ohms, so it appears to be ok.  I also checked for continuity between the pins and the outer casing of the compressor, and did not get continuity, so the compressor seemed to check out ok.  After doing some online research, i started by changing the power and inverter pc boards. After that didn't work, i changed the main pc board, but that didn't work either. I have also activated the forced compressor mode, and still the compressor does not start.

I was able to pull codes that indicated open or shorted heaters in freezer and fridge sections. I discovered one of the defrost heater of the freezer sections was physically broken, so i presumed it burned out. I replaced the defrost heater, along with two thermostats on the freezer side. but still the compressor has not started.  I've check the resistance on all the heaters and sensors and they appear to check out ok, no open or shorted  components.

I'm back to square one and now believe it has to be the compressor, but is this likely for a 6 year old refrigerator?  The resistance between the windings check ok and there is no continuity between the windings and the outer case of the compressor.  When i first discovered the compressor not running, i removed the back panel and noticed it was almost completely covered, so is it possible that it just overheated and died due to not enough airflow?

I"m tying to figure out if i should have the compressor replaced as it is something i cannot do myself. 

Any help, advice or suggestions is appreciated.
« Last Edit: March 15, 2014, 12:54:32 PM by alxf001 »

Online go400

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Re: Samsung Compressor Dead?
« Reply #1 on: March 21, 2014, 06:06:59 AM »
A nine volt ohmmeter will not detect burnt compressor windings, only a functional test with a good inverter and amprobe will determine status of the windings. Your new inverter may have blown out due to burnt compressor windings.

Offline domain

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Re: Samsung Compressor Dead?
« Reply #2 on: March 21, 2014, 09:20:11 PM »
A nine volt ohmmeter will not detect burnt compressor windings, only a functional test with a good inverter and amprobe will determine status of the windings. Your new inverter may have blown out due to burnt compressor windings.

Mind elaborating please?

Online go400

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Re: Samsung Compressor Dead?
« Reply #3 on: March 22, 2014, 05:42:57 AM »
An amprobe check of the current into the windings would detect burnt windings. The current might be a short duration when the inverter shuts down on overcurrent.

Online go400

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Re: Samsung Compressor Dead?
« Reply #4 on: March 22, 2014, 07:43:13 AM »
Check for 115 volts single phase to the inverter module, just might be missing.

Offline niobrara

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Re: Samsung Compressor Dead?
« Reply #5 on: March 22, 2014, 09:57:08 AM »
I would think with your windings checking ok you may want to double check the main board,power to the inverter,then power thru the inverter.

Online go400

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Re: Samsung Compressor Dead?
« Reply #6 on: March 22, 2014, 02:13:49 PM »
The compressor windings could be all burnt up and still test ok with a 9 volt ohmmeter, status of windings can only be determined at 115 volt input and an amprobe.

Offline niobrara

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Re: Samsung Compressor Dead?
« Reply #7 on: March 22, 2014, 04:09:50 PM »
Agree

Offline domain

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Re: Samsung Compressor Dead?
« Reply #8 on: March 23, 2014, 02:12:08 PM »
Is it safe to assume a LRA reading on the meter would be windings ok but mechanically locked up? And if i have 120vac to windings with NO amp draw, that would be BURNT windings? :thanks:

Offline niobrara

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Re: Samsung Compressor Dead?
« Reply #9 on: March 23, 2014, 03:17:05 PM »
I can't answer with any truth what is wrong,but I say locked up and change it. I have never cut one open. But I have had 2 that had power and ohmed ok . Changed them ,all was good.

 

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