domino said:

Thanks for the explanation wammers

So, this afternoon, I removed the valve block and replaced the driver pack just so I can potentially rule it out of any problems. I took the block out so I could check all connections and I'm satisfied that they are good.

Put the compressor back in that was in it and running yesterday... nada. Put it another, nada and it's coming up as 'HOT'. I'll be going back out with my 3rd spare and seeing what happens, along with the laptop and the RSW software, just in case it's Nanocom being weird.

I'll report back what happens, or doesn't, as the case may be. If it's still spitting the dummy, I'm gonna stick schrader valves on, inflate it manually and remove the delay timer so it can sulk in the corner.

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domino said:

Based on a good, fully working compressor, how long would the compressor have to be running for the thermal switch to cut in and switch it off?

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wammers said:

Until it heats to more than 120 degrees. Or see post #15. Or someone has fitted a lesser value switch in it. Part number on switch should be. AIRPAX 67L120. Should run for a good 15 mins without over heating.

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domino said:

You'd think so.. but if I plug in diagnostics I can switch it on and off without issue. It runs on the bench without fail.

Waiting on some compound to arrive for my other driver pack and I'll get that on with another compressor. Pipe should arrive tomorrow or Friday too so I'll be able to test then.

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Datatek said:

Running the compressor on the bench does not involve the temperature switch and that may also be the case running it from diagnostics.

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domino said:

Number 3 compressor is now in and all is well once again...though it is noisy. Starts that knocking noise I mentioned previously after 20 seconds or so.

At least I can drive the thing now. Just need rimmers to hurry up and send me the replacement pipes!

Now all I need to do is check and perhaps replace the temp sensors in the other two!

Thanks for all your help guys

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wammers said:

The clip holding the oilite bearing at the brush end comes adrift and the armature wobbles about like a whippets dick. That is what usually causes the noise.

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urena said:

you been looking at dogs dicks ??

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wammers said:

No it's an old saying around these parts. Got it from my old grandpappy.

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tomcat59alan said:

They had some strange hobbies in the past Will give you a ring today Tony with an update, let me know the best time.

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domino said:

Ah well, she's huffing again. Throwing up hot errors on this one too. So, either all the temp sensors in the compressors are duff or there's a connection problem with the temp sensor circuit.

Most annoying!

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domino said:

Ah well, she's huffing again. Throwing up hot errors on this one too. So, either all the temp sensors in the compressors are duff or there's a connection problem with the temp sensor circuit.

Most annoying!

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wammers said:

You don't say? Why sometimes on here do i get the impression i and sometimes others are talking to themselves.

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domino said:

Just as a wee update, I took apart 2 compressors today. The first was a Dunlop that was put on the vehicle in August last year from an LR 'specialist'. It was marked as a brand new, OEM unit. The temp sensor in this one is "JUC-31F" and is marked to be 125 degrees.

The other one is one of those green labelled units and it does actually have the AIRPAX 67L120 sensor in it though the bearing is wobbly as hell and the brushes look a bit..****.

So either Dunlop changed their temp sensors or what I was sold was a refurb unit and not brand new at all.

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