P38A Compressor not working

J L Carr · Mar 23, 2019

Hi Guys. My compress has stopped working,checked it over and there is no power going to it, I have checked all fuses and all ok. It will run via a second power source and pump the suspension up. But nothing coming though it own main wire purple, small black wire there's power just the main wire. Any body got any suggestions HELP.

Datatek · Mar 23, 2019

J L Carr said:
Hi Guys. My compress has stopped working,checked it over and there is no power going to it, I have checked all fuses and all ok. It will run via a second power source and pump the suspension up. But nothing coming though it own main wire purple, small black wire there's power just the main wire. Any body got any suggestions HELP.

Thermal cut out in the compressor failed or a duff relay. I think you will find that Wammers has posted some stuff in the technical section.

J L Carr · Mar 23, 2019

Great advice in that section, but it does not tell you where the thermal cut out switch is, any ideas would help.

Datatek · Mar 23, 2019

J L Carr said:
Great advice in that section, but it does not tell you where the thermal cut out switch is, any ideas would help.

In the opposite end of the motor to the compressor, you can test it without removing or opening up the compressor, details in the technical section

J L Carr · Mar 23, 2019

Thanks, Datatek I will give it a go tomorrow.

J L Carr · Mar 24, 2019

Well found out the thermal cut out has packed up so just jerry rigged a switch to work the compressor just for now. Now just got to hunt for a EAS valve block that works, as I have 3 of the bloody things and all 3 are letting out air, even tho I've changed all the seals in a good set. Now just have to wait for my second hand compressor to turn up,as this air suspension is driving me nuts.

Datatek · Mar 24, 2019

J L Carr said:
Well found out the thermal cut out has packed up so just jerry rigged a switch to work the compressor just for now. Now just got to hunt for a EAS valve block that works, as I have 3 of the bloody things and all 3 are letting out air, even tho I've changed all the seals in a good set. Now just have to wait for my second hand compressor to turn up,as this air suspension is driving me nuts.

Send me your rejects and I'll fix them

Dopey · Mar 24, 2019

Is this them?

Datatek · Mar 24, 2019

Dopey said:
Is this them?View attachment 173363

Looks likely

Dopey · Mar 24, 2019

If you need one just say

J L Carr · Mar 24, 2019

Where did you get them from, is there a guide to doing a valve block seal replacment on the forum or is it just take 1 valve at a time and do you use any vasilene on the seals or a little bit of silicone spray just to keep[ them in place. I have 3 valve bolcks and realy don't fancy buying another one and where would you recpomend buying a new set of seals from. Thanks.

J L Carr · Mar 24, 2019

Just had a look on good old Fleebay and the only ones I can get are 90 deegree type not the 120 would it make that much of a differance apart it would cut off sooner.

Grrrrrr · Mar 24, 2019

J L Carr said:
Where did you get them from, is there a guide to doing a valve block seal replacment on the forum or is it just take 1 valve at a time and do you use any vasilene on the seals or a little bit of silicone spray just to keep[ them in place. I have 3 valve bolcks and realy don't fancy buying another one and where would you recpomend buying a new set of seals from. Thanks.

Farnell sell them.

There's an unbeatable valve block refurb guide on a website called something like paulsp38a.com.

J L Carr · Mar 24, 2019

Grrrrrr said:
Farnell sell them.

There's an unbeatable valve block refurb guide on a website called something like paulsp38a.com.

Just had a look and there is nothing there, thanks. Farnells do not stock them or sell them any more, looks like I may have to ask Dopey for 1.

Dopey · Mar 24, 2019

Grrrrrr said:
Farnell sell them.

There's an unbeatable valve block refurb guide on a website called something like paulsp38a.com.

they done sell them any more, haven't for a long time, they are hard to get, took me a month to find a place

Dopey · Mar 24, 2019

PM me your addy

Datatek · Mar 25, 2019

J L Carr said:
Just had a look on good old Fleebay and the only ones I can get are 90 deegree type not the 120 would it make that much of a differance apart it would cut off sooner.

90 degree is no good, the cut out should never normally operate, it's only there for an overheat. The compressor can get very hot in normal use.

Grrrrrr · Mar 25, 2019

Dopey said:
they done sell them any more, haven't for a long time, they are hard to get, took me a month to find a place

RS might?

wammers · Mar 25, 2019

Dopey said:
Is this them?View attachment 173363

Yes but they are becoming rare. No longer made by AIRPAX apparently. N/C 120 degrees open 85 degrees closed.

Dopey · Mar 25, 2019

Can I find them in the shed? no.... been looking for an hour, I know they are there....

P38A Compressor not working

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