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        General >> Problems >> No power to a/c compressor. ??
        
(Message started by: dxt on Jun 9^th, 2007, 2:46pm)

Title: No power to a/c compressor. ??
Post by dxt on Jun 9^th, 2007, 2:46pm

My a/c is still not working and we have now checked the power to the compressor and NOTHING. The little green light is working on the CC unit but absolutely nothing in the a/c working at all. The blower motor is working (and heater) but thats it. Does anyone have a fairly basic wiring diagram that we can use to trace back to the CC unit. Or of course any ideas??
Cheers and very Hot.
dxt

Title: Re: No power to a/c compressor. ??
Post by scorpio_man on Jun 9^th, 2007, 3:17pm

http://www.carsoft.ru/avtorepair/sierra_el.html

also check the WOT relay (r24)
http://www.fordscorpio.co.uk/images/handbook134.gif

hth

Title: Re: No power to a/c compressor. ??
Post by sector-9 on Jun 15^th, 2007, 11:33pm

Feed to the compressor comes through R24, one of the fuses and I believe the pressure switch on the receiver. Does the system have the correct gas pressure? Too low or too high will cut power to the compressor (and run the fans if high). What about the de-ice switch on the evaporator? This shuts off the compressor when it detects the evap temperature has fallen to a pre-determined limit. Do you have the brass link fitted in position B9 (I think) of the aux. fusebox? That is also part of the compressor clutch circuit.

Darren

Title: Re: No power to a/c compressor. ??
Post by dxt on Jul 6^th, 2007, 3:55pm

Hi everybody ..... Still no A/C working. (not that we need it at the moment). And now when I do a reset on the CC unit it comes up with code 03..... Any suggestions ?? Please be kind I'm thinking about driving it off beachy head.......

Title: Re: No power to a/c compressor. ??
Post by petehull on Jul 6^th, 2007, 4:22pm

@ @
Don't drive it of beachy head, leave it parked on the top and I'll come and collect it.... ;D ;D

http://www.fordscorpio.co.uk/airconelectrical.htm
http://www.carsoft.ru/avtorepair/sierra_el.html

Don't worry about it being called Sierra, it is for th Scorpio... ???

Pete