I tried my a/c today and the compressor didn't go on. The manual says that if there's a problem with the a/c, then the button to turn on the a/c will flash. It doesn't.
Does anyone know what could cause this? My check engine light is on
with 2 codes : P0015 (Timing over retarded) and P0128. Could any of these have anything to do with this?
Thanx
Gerry
2003 Volvo S40

 

P0128 indicates a faulty engine thermostat which could affect the AC.

 

Found the problem. Went to my local garage and he topped up the freon and the compressor started to work. Very happy.
Gerry