Air con wiring fault, who's best to get to fix it?

alistairhurst · Jul 12, 2013

Hi

My air con is faulty so decided to get it tested at kwikfit. Vacuum tested ok, they got it running by bypassing the existing wiring. They want £50 per hour to diagnose where the wiring fault is and fix.

What's the cheapest way forward? Shall I get an auto-electrician to have a look or independent air con specialist?

Is there an obvious place to start looking for an air-con wiring fault?

Cheers

Datatek · Jul 12, 2013

alistairhurst said:
Hi

My air con is faulty so decided to get it tested at kwikfit. Vacuum tested ok, they got it running by bypassing the existing wiring. They want £50 per hour to diagnose where the wiring fault is and fix.

What's the cheapest way forward? Shall I get an auto-electrician to have a look or independent air con specialist?

Is there an obvious place to start looking for an air-con wiring fault?

Cheers

Download RAVE and look for yourself, the wiring for the aircon is pretty simple, you could start by looking at the fuses/relays.

pete38 · Jul 13, 2013

Try taking it to your auto electrician I bet the clutch needs adjusting simple job $60
over in oz.
if the clutch is out that is to say the magnetic plate is to far away to stay connected it wont drive the compressor.

dogsbody · Jul 13, 2013

pete38 said:
Try taking it to your auto electrician I bet the clutch needs adjusting simple job $60
over in oz.
if the clutch is out that is to say the magnetic plate is to far away to stay connected it wont drive the compressor.

Keep up Pete
The man says that it works if you bypass the wiring so the clutch must be working.

wammers · Jul 13, 2013

Dual pressure switch cycles compressor clutch. Depends on year of car, pre 99 it is powered direct from Hevac unit. Post 99 it is powered by Hevac unit pulling in relay 3. Dual pressure switch is on drier. That's all the info you need to check the circuit.

alistairhurst · Jul 13, 2013

I downloaded RAVE, not sure if I downloaded the right bit cos I can't see any wiring diagrams?

Datatek · Jul 13, 2013

alistairhurst said:
I downloaded RAVE, not sure if I downloaded the right bit cos I can't see any wiring diagrams?

Depending on the version you have they can be found in the Workshop manual section, electrical, repair.

wammers · Jul 13, 2013

alistairhurst said:
I downloaded RAVE, not sure if I downloaded the right bit cos I can't see any wiring diagrams?

Look in, Electrical trouble shooting manual. Pick your variant and click on circuit. Then pick your circuit from the list.

alistairhurst · Jul 20, 2013

still cant find the sodding wiring diagram! the workshop manual I downloaded has 1361 pages, am I looking in the right place? any help appreciated.

My car is black and I'm dying in this heat! need to get it sorted ASAP

cheers

wammers · Jul 20, 2013

alistairhurst said:
still cant find the sodding wiring diagram! the workshop manual I downloaded has 1361 pages, am I looking in the right place? any help appreciated.

My car is black and I'm dying in this heat! need to get it sorted ASAP

cheers

Download the one from the link in my "How To".
From technical information click "Range Rover".
Click + next to "Electrical trouble shooting manuals".
Select year.
Click + next to "Circuit".
Look down list and select K4. "Heating with A/C.
Scroll through diagrams.

alistairhurst · Jul 25, 2013

cheers Wammers, I downloaded RAVE and extracted the PDF's from the zip file, it doesn't autorun so can you point me in the right direction of which PDF file to try opening??

cheers

wil2813 · Jul 25, 2013

don't take it to landrover they only build em,they havnt got a clue how to fix em

Air con wiring fault, who's best to get to fix it?

alistairhurst

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Datatek

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pete38

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dogsbody

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wammers

No longer with us, RIP

alistairhurst

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Datatek

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wammers

No longer with us, RIP

alistairhurst

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wammers

No longer with us, RIP

alistairhurst

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wil2813

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