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Post by karlbrighton on Sept 9, 2014 11:00:24 GMT
Hey guys. RO81 finally arrived today. Sat and carefully looked at the wiring, confusing me a little though. Have attached a diagram of what looks about right? Would really appreciate your comments. Come this far, so don't want to mess it up.
Also managed to find an old stock ranco A10-670 cold control, thanks to the replacement list on here. Cheers Karl
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Post by karlbrighton on Sept 9, 2014 11:02:18 GMT
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Post by allan on Sept 9, 2014 13:29:39 GMT
Diagram is incorrect. Can you ohm out your compressor with the leads disconnected? That way we can get it exactly correct |
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Post by coldspaces on Sept 9, 2014 15:24:15 GMT
This should be the original wiring from the factory.  The two black wires going into the R081 feed the power in. One should go to the red or green wire going to relay terminal #4, the other one goes to the two white wires at relay terminal #2. The three wires going out of the R081 Black is common and should go to the black wire going to the compressor, this black wire was hooked to relay terminal 2 originally. Red is run and should go to the green wire going to the compressor, this wire was on relay terminal #3 originally. White is start and should go to the white wire going to the compressor, this wire was on relay terminal #1 originally. Attachments:
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Post by karlbrighton on Sept 9, 2014 21:51:08 GMT
Thanks so much.. Shall have time Thurs to get it wired up. Will let you know how it goes.
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Post by karlbrighton on Sept 10, 2014 7:10:01 GMT
Thanks so much.. Shall have time Thurs to get it wired up. Will let you know how it goes.
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Post by karlbrighton on Sept 11, 2014 12:26:12 GMT
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Post by karlbrighton on Sept 11, 2014 12:38:33 GMT
Wired up the relay and the new cold control. Seems to be working perfectly. Been on about 5 hours, compressor just slightly warm, very quiet. Pulling 180-190w 1.70amp. Really pleased. Shall see how it goes over the next few days. Then look at cabinet. Thanks to you guys, a great machine working, instead of scrap. The original relay looks OK. Bit scorched in the case. Will update. Made a gasket from some black rubber draft excluder. Will do for now, but would like to find something more original eventually. Cheers again..
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Post by karlbrighton on Sept 11, 2014 12:47:35 GMT
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Post by cablehack on Sept 11, 2014 13:57:45 GMT
That's excellent news! The original relay you show certainly includes the thermal overload, but evidently there was some fault preventing it working.
For the door seal, if you want originality, you can get a reproduction with the original cross section from Rusty Metal Rescue (it's the same one on ebay but if you buy direct from Don it's slightly cheaper). I've installed this seal on both my fridges with excellent results. Whatever you choose, make sure it's airtight or you could end up with a rusty cabinet.
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Post by coldspaces on Sept 11, 2014 21:09:41 GMT
Great news, glad to here it is working!
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Post by karlbrighton on Jan 22, 2020 10:36:44 GMT
Hi guys..
This cj has been working perfectly for over 5years now. When I defrosted this morning as usual, when I switched the controller back on nothing! Light is working, just nothing happening in the compressor! When I first had the fridge it was running on the start windings, due to the wire in the old relay being faulty. The relay and cold control were both changed, thanks to all the advice on here. I hope that the motor hasn't given up, how's best to check. Apologies I'm a complete novice. Many thanks
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Post by cablehack on Jan 22, 2020 11:42:55 GMT
Since it seems to have stopped only after manipulating the control, my first suggestion would be to simply bridge out the connections on the control. If the compressor starts up, it's confirmation that the control will need to be investigated. Another possibility is a fault in the R081; the PTC thermistor that functions as the overload protector could have failed. If you're wondering about the compressor being burned out, you can do a continuity test at the compressor terminals - hopefully getting a reading between all three terminals.
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Post by karlbrighton on Jan 22, 2020 11:56:17 GMT
Have tried using an ohm meter on the compressor, could only do from the wires, black to whilte 27 black to green 13 white to green 32.
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Post by cablehack on Jan 22, 2020 12:02:30 GMT
Have tried using an ohm meter on the compressor, could only do from the wires, black to whilte 27 black to green 13 white to green 32. That's a good start, shouldn't have to worry about a burned out motor. |
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