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aircon problem

Posted: Thu Jan 14, 2010 8:17 pm
by 4wd_pig
ive got a problem with my aircon in my gq 4.2 diesel.

the compressor will not kick in and the electric fan that should turn on when the aircon is engaged doesnt run at all. ive checked the fuses and there are no blowen fuses. i was wondering if anyone has any suggestions where to start or if someone could point me in the dirrection of a wiring diagram for the aircon unit?

Posted: Thu Jan 14, 2010 8:28 pm
by msjc38
bridge the presure switch that should switchn the clutch on. If that works get it regased the system will not switch on with low pressure in the system

Posted: Fri Jan 15, 2010 7:13 am
by purplebus
msjc38 wrote:bridge the presure switch that should switchn the clutch on. If that works get it regased the system will not switch on with low pressure in the system
X2

Posted: Fri Jan 15, 2010 9:22 am
by coxy321
purplebus wrote:
msjc38 wrote:bridge the presure switch that should switchn the clutch on. If that works get it regased the system will not switch on with low pressure in the system
X2
x3

I got mine done 2 months ago and it cost $500 odd, mainly because of some shagged lines and also cracked fittings on the condensor. Works great now!

Posted: Fri Jan 15, 2010 7:22 pm
by 4wd_pig
how and wear am i bridging ?

Posted: Fri Jan 15, 2010 7:35 pm
by ledgend80
the low pressure switch is normally located on the reciever dryer. just need to bridge the 2 wires on there together. this should then send direct power to your compressor

Posted: Fri Jan 15, 2010 8:14 pm
by T_Diesel
Try replacing the relay aswell. When mine shit itself in the GQ, it was the relay.... $5 fix.