I need help to trouble shoot compressor not working after switching on the
A/Cond. If anybody can provide the wirings control it and are they relay
switches or sensors which could be faulty? Someone told me the common fault
is ignition key giving poor contacts, I have changed a new switch attached
to the ignition key but problem not fixed.
Thanks in advance.
Compressor could be not working due to insufficient Freon charge. I
believe there's a switch that detects this and so protects the
compressor from being damaged.
Have an A/C shop check the system's Freon charge before messing about
with its mechanical parts.
Always check the basic things first.
Dunno about your particular car model, but in my car (86 190e) The deal
breaker with the AC was a loose serpentine belt... Not loose enough to
make noise though.
Replacing the tensioner and the belt, magically also fixed the AC.
I would first check to see if the magnetic clutch works. Simply run a jumper
wire from the connector on the compressor to the positive side of the
battery. You should hear a "click" as the clutch engages. If you have two
leads on the connector going to the compressor you need to ground one of
them. You might also use a test light to see if you're even getting current
to the compressor. Good Luck!
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.