alright heres the rundown...92 sc3. The cars ac light would start to blink after trying to turn it on. The compressor would kick on then go off when the light started to blink. The heater worked fine with no problems. Recently when trying to turn on the ac, the light stays on with no blinking, but the compressor doesnt come on. Also the heater does not work at all. It blows fine through all the levels, just no hot or cold air. It just blows the same temp air through max cold- max hot. Any help would be greatly appreciated. thanks

 

sounds a problem I had awhile back, the A/C would cut on and off (display) I had to undo everything and it turned out to be one of plugs (that go into the back of the display) was loose.

 

also forgot to mention waterpump/ timing belt was done recently...and heat was working fine before that. was told that it may be a cause but anyone with any tips or advice?

 

hmm, maybe somethings loose?

 

heat now comes on and off but not at all times...and only at max hot...everything in between max cool to 85 degrees is the same. Only when the setting is at max hot is when the heater comes on but other than that everything stays the same temp.

 

I have the same exact problem as the OP. Word for word. any help please.