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Just do the relay bypass. That panel needs full compressor current or it faults.
P38A AC Issues
- Thread starter Stevekennah
- Start date
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Stevekennah
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Which panel pwood? The awr1012?
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- Near Heathrow.
It’s an early version and is expecting to see compressor clutch current. Later models ignore the current and trigger the relay.
It depends if the relay wiring has a load resistance to fool the control circuit.
If your VIN is later then someone swapped the correct panel probably due to LCD issues.
Mine has no relay but later panel. All the info is in that other thread.
It depends if the relay wiring has a load resistance to fool the control circuit.
If your VIN is later then someone swapped the correct panel probably due to LCD issues.
Mine has no relay but later panel. All the info is in that other thread.
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- 58,170
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- Preston Lancs.
JFC102550 covers all models with heated seats as does JFC102540 without heated seats, but that is no longer available. They will run the aircon with or without relay 3. There at one time was a wiring kit to incorporate relay 3 but no longer available and for what it was cost a bloody fortune. But anyone with a bit of nous should be able to look at 1999 and on wiring diagrams and rig relay 3 in. Wire from Hevac to relay 3 pull side and ground. 20 amp feed to relay 3 power side and to compressor, simples.
Last edited:
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- 19,309
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- Buckinghamshire, UK. ('95 DT)
Simple when you know how!
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- 58,170
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- Preston Lancs.
Fortunately i know how. But no need, on mine it does not have relay 3 but it does have JFC102550 that runs the aircon without problems. Because it is designed to replace ALL previous models. I also have a replacement one to fit if anything goes wrong. But i don't think it will, the one fitted has been running aircon for over ten years without a problem.
Stevekennah
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So quick update using the main dealer method of fault finding the following has been replaced
Dryer
Pressure switch
Tri switch
Interior sensor
Evaporator sensor
Just waiting for the JFC102550 HEVAC panel and then a quick prey to the range rover god's before gassing and firing it up........
Dryer
Pressure switch
Tri switch
Interior sensor
Evaporator sensor
Just waiting for the JFC102550 HEVAC panel and then a quick prey to the range rover god's before gassing and firing it up........
Stevekennah
Active Member
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- 190
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- chester
Hi all
Just a quick message to say thanks to everyone who offered help and assistance with this issue, I now have a working ac system
Next problem .... Cruise control
Just a quick message to say thanks to everyone who offered help and assistance with this issue, I now have a working ac system
Next problem .... Cruise control
- Posts
- 19,309
- Location
- Buckinghamshire, UK. ('95 DT)
It was the wrong panel?
Stevekennah
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- chester
That was one of the issues
Thanks again for the help
Thanks again for the help
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