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I ordered Part No. 548338 (Relay) and received Part No. 4318083. I have confirmed that this is the redesign of an old wire coil type relay. I do not know how to connect the relay. Coming into the old relay, my refrigerator has a red and a blue wire. The instructions that came with Part No. 4318083 show a run connection and a start connection. I do not know which color wire is run and which is start. The old relay connected to the compressor with a white wire to the left side of the compressor (the side of the compressor closer to the door of the refrigerator) and a bare wire to the right side of the compressor (the side of the compressor closer to the back of the refrigerator). There is a white wire that does not attach to the relay, and it attaches to the uppermost terminal of the compressor.
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Rank: Advanced Member
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Joined: 9/10/2007(UTC)
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First of all, read the model # tag to verify this is an R12 refigerant fridg.
If so, these old compressors are impeadance protected and hard to burnout by miswiring it.
Also, verify there is no start or run capacitor, usually a round, high capacitance item that's rather large for start, and a smaller, black one for run.
If none, verify there is a round, black overload device plugged in the top compressor terminal. If there, retain it.
You should only have two wires going to the compressor. One goes to the overload device pin, the other to the start device run pin. Plug in the start device into the bottom compressor terminals, then monitor the common pin current with an amprobe.
Plug in fridg, compressor should start. If it fails to start and draws high current, the overload will kick out. Post results.
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Rank: Member
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Joined: 1/2/2012(UTC)
Posts: 2
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Thank you.
Yes, this is an R12 refrigerant refrigerator.
I see only one component that I think to be a capacitor. It is not shown on the parts breakdown that came with the refrigerator, but it is cylindrical, about 1" diameter, and about 3" long.
There is an overload device, but I do not think that it was ever connected to the compressor. There is a red wire that enters the relay case, and it attaches to the overload. From the overload, a red wire connects to that which I assume to be the capacitor.
Three wires are attached to the compressor. There is a white wire that enters the relay case and attaches directly to the top pin of the compressor. There is a white wire that comes from the relay, and a bare wire that comes from the relay.
I have made digital photos. Can I attach and send via a separate e-mail?
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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Seems like you have an RCO410 hard start device wired to your compressor.
This device is safe to use on your R12 compressor. If this fails to start your compressor, you might just order a new one from this site, should reliably start your compressor. Wire the new one just like the old one.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
Seems like you have an RCO410 hard start device wired to your compressor.
This device is safe to use on your R12 compressor. If this fails to start your compressor, you might just order a new one from this site, should reliably start your compressor. Wire the new one just like the old one.
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