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I remember a post where the P38 owner could hear the relays click/operate but in fact the contacts were defective.
P38A P38 Compressor wont start automatically
- Thread starter P4wn33
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Datatek
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Any smell of burning in the fuse box?
tomcat59alan
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The thermal switch is mounted on the end plate of the electric motor, with the brushes.
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2 compressor, both not running, but everything else looking ok. My money is on a duff relay or something equally silly. 
Datatek
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Mine is on the fuse box2 compressor, both not running, but everything else looking ok. My money is on a duff relay
thanks
2 compressor, both not running, but everything else looking ok. My money is on a duff relay or something equally silly.
ok what is an duff relay, I always associate duff with the Simpsons xD
Datatek
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Duff = defective or faulty. A relay tester can show that the relay is OK as it only draws a little current but the relay can still be faulty.
oh yeah that make sense thank you!
tomcat59alan
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Check out the compressor connector block, the contacts may need cleaning and squeezing a bit to make a better connection. My compressor stopped a while ago and the problem was burn male spades Clean and contact cleaner sorted it.
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Sorry UK "slang" DUFF = Defective.
I do hope you get to the bottom of this problem.
Perfect name for American beer. Well done The Simpsons.
Have we suggested the white connectors in the A-post yet?
Other slang is availableSorry UK "slang" DUFF = Defective.
I do hope you get to the bottom of this problem.
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Here is where the "duff" relay is located
I only say this because if you bridge the relay the pump runs, so I think the contact in the relay is "gefickt".
I only say this because if you bridge the relay the pump runs, so I think the contact in the relay is "gefickt".
tomcat59alan
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If you earth the orange wire in the comp.connector block and the comp runs the thermal switch is faulty.
nope which white connectors?
Here is where the "duff" relay is located
I only say this because if you bridge the relay the pump runs, so I think the contact in the relay is "gefickt".
View attachment 262509
HAHA yeah the "gefickt" (in english: "fu ck ed") is absolutely brilliant ;D so you mean it help when I spray PCB Cleaner into the fuse box?
Datatek
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No, fuse box overheat is a fairly common problem due to failed solder joints and loose connectors. They can be repaired if you are good with a soldering iron.
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I would swap the R20 relay with one of its siblings just to see if it suddenly springs into life.
oh okay.. Is this difficult to disassemble?
I already done that and nothing happenedI would swap the R20 relay with one of its siblings just to see if it suddenly springs into life.
