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Amine  
#1 Posted : Friday, May 22, 2009 5:00:34 PM(UTC)
Amine

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My Frigidaire Model # FRS23R4AW6 is not working.
The fan next to the compressor is working.
I replaced both the relay/capacitor but still the compressor is not starting.
I did a ohm reading of the compressor, it looks good:
C-S = 9.3
C-R = 4.1
S-R = 5.7

Is there another test or check before I gave up on this frig? Thanks

Amine
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denman  
#2 Posted : Saturday, May 23, 2009 1:54:24 AM(UTC)
denman

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Something looks weird on your readings.
If C to S is the start winding and C to R is the run winding then S to R should be the start and run winding in series and your reading should be the start plus the run (13.4 ohms approx.).

Your readings indicate that the 2 windings are shorted to each other internally, compressor is toast .
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Amine  
#3 Posted : Saturday, May 23, 2009 6:32:43 AM(UTC)
Amine

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Hi denman,

Thanks for your reply, you might be right, but it might be that I am labeling the 3 pins wrong (there is no way to know which is which). I labeled the pins as follow:
C
S R
And the readings are:
C-S = 9.3
C-R = 4.1
S-R = 5.7


But based on this link (http://www.davesrepaironline.com/DIYhelp/DIYcmprtest.htm). Then the real layout of the pins are:
S
R C
And the readings become:
S-R= 9.3
S-C= 4.1
R-C= 5.7

Which then make the compressor looks good. Is there a way to make sure which pin is which? Thanks

Amine.
Amine  
#4 Posted : Saturday, May 23, 2009 6:35:38 AM(UTC)
Amine

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I noticed the link is not permitted. Anyway this is the summary of the link:

Basically, using a digital ohmmeter, you pull the compressor's relay and overload off its three terminals, then check the resistance between each of these three pins. Older relays looked a bit different than the solid state one below, but pulled off pretty much the same way.
First note the two pins that read the highest resistance. The one that remains is the 'common', to which one end of both the start and main windings connect. (The common's not always the top pin, so you'll want to do this test to be sure)

Reading from that common to each of the other two, carefully note each reading. Then measure back across the two with the highest resistance, ignoring the common. That reading should be the exact total of the two individual coil readings, because you're reading through both coils in series now.
denman  
#5 Posted : Saturday, May 23, 2009 7:50:42 AM(UTC)
denman

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The two windings still do not add up to the total they should.
Also did you check from the pins to the compressor's case.
They should all be infinite ohms an open.
You may have to scrape some paint off to get a ground on the case.

It does sound like it is toast and you are just trying to confirm that.
Unfortunately there is no way to check that the compressor itself, if it is mechanically shot.
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