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- > Do-It-Yourself Appliance Repair Help > The Kitchen Appliance Repair Forum > Frigidaire/Electrolux Fridge FRTC03L3DW0

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Frigidaire/Electrolux Fridge FRTC03L3DW0  Rating:  Rating
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 Posted: Sun Sep 19th, 2010 07:15 pm
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FixItGuy2010
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Hello appliance guru's! I have a Frigidaire Fridge that stop getting cold after a power outage. The compressor would try to start but would fail. I took off the relay, a 3012 Unidad Hermetica, and opened it. The ceramic disk inside was cracked. I bought a replacement relay, model PR081.

Do you guys/gals know how to connect the PR081 to my fridge?
I'm not sure which wires connect to which terminal.

Thanks




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 Posted: Sun Sep 19th, 2010 07:25 pm
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appl.tech.29501
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there should be Letter on the old PTC "L" and "N" as your new one has. cant tell from the picture , does the new relay have 4 terminals?



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 Posted: Sun Sep 19th, 2010 08:19 pm
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FixItGuy2010
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Hi thanks for responding. It looks like there is a "N" on the old relay but I'm not sure if it is a terminal label. The PR081 has 4 terminals if I take the CAP jumper off, with the CAP jumper on the PR081 will have 2 terminals.


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 Posted: Sun Sep 19th, 2010 08:36 pm
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appl.tech.29501
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It looks from your picture that the top terminal Has an "L" beside it which is "LINE"
If so, put the gray wire there and the the Brown wire on the other "L". connect the other 2 wires to the other 2 terminals...doesn't mater which goes where.





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 Posted: Wed Sep 22nd, 2010 02:06 am
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FixItGuy2010
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I tried what you said but its still not working.

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 Posted: Wed Sep 22nd, 2010 02:32 am
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Does the compressor humm? Do you have 120 V to the relay?



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 Posted: Wed Sep 22nd, 2010 02:46 am
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FixItGuy2010
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The compressor didn't make any noise, but the interior light was on in he fridge so it had voltage.

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 Posted: Wed Sep 22nd, 2010 01:59 pm
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did you verify that your old relay was bad or are you guessing? You may have a bad cold control.



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 Posted: Thu Sep 23rd, 2010 03:02 am
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FixItGuy2010
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well I opened the old relay and the ceramic disk inside was broken

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 Posted: Thu Sep 23rd, 2010 11:51 pm
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Verify that you have 120V to the relay..I still stand by my wire locations On the new relay Vs. the old one.

Have you OHM'd the compressor? That needs to be done as well.



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 Posted: Fri Sep 24th, 2010 04:01 am
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I got it working with the Gray on top, the White on bottom and with the CAP jumper on. I tried it with the capacitor in but the overload in the relay would trip. I determined the compressors resistance was good with the directions from this page: http://www.davesrepair.com/DIYhelp/DIYcmprtest.htm which said:
"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."

Thanks for your help. :):thumbsup:

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 Posted: Fri Sep 24th, 2010 04:44 am
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That wiring doesn't make since to me but hey, ya got it working.

Can't complain on a non serviceable unit ;)



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