AC compressor not kicking on

[Psych0matt]

Like the title says, i turn on the ac and nothing happens except blowing out the vents. I was going to get it recharged, but it was full. so, does that mean I just need to get a new compressor? or whats going on!?

[Canada]

Well......either the compressor is junk, or it isn't being told/allowed to turn on.

 

Perhaps there is a bad sensor....or maybe your control head is working....there are a ton of options.

[Turbocharged400sbc]

find the AC compresor clutch relay and manually activate it (jumper it) if the clutch turns on then ther is a problem with the primary side of the realay, it's circuit, or the high/low side sensors or controll head.

 

does the control unit have a light for AC ? if it's not turning on start there... if it is turning on then there is a possibility of a bad sensor and or circuit...somewhere...

 

i have Mitchell on Demand...but i have to print it then scan it to post it (damn cut and paste dont work with mitchell lol

 

james

[digitaloutsider]

If the pressure is too low, it won't allow it to turn on. You have to jumper it.

[jeremy]

If the pressure is too low, it won't allow it to turn on.

 

I was going to get it recharged, but it was full.

[Whiskey River]

Don't go by static pressure. It will be the same regardless of how much refrigerant is in the system. As an example, a 20 lb. tank will have the same static pressure as a 1 lb can. The static pressure is heat related.