askingxforxit

No ac, only hot air and only coming from the defrost vents. I can not change direction of air or temperature. I can hear the relay click but no cold air.

hoov100

Check the FSM and google z32 auto climate control diagnostics. If you need a new control unit, I have one I'll give you. I'm in palm springs.

askingxforxit

I've done the diagnostic thing but numbers don't make any sense to me. I can take pics in the morning of what its displaying when in diagnostic mode if that helps.

DuG

Hi

- Are you sure you have frigofluid in the pipes ?
- Compressor can bu running but not compressing if dead
- Is the radiator fan running when you turn on A/C ?

askingxforxit

No I haven't been able to check refrigeration fluid or pressure...but yes the fan comes on when I turn on the a/c.

I'm guessing the air is hot because its passing over the heater core due to the fact that I can not change the direction of air flow from the defrost vents.

DuG

You should first check the fluid it's a common issue
then there is no relation with the heater, except if you have another problem like you're heating and freezing at the same time

askingxforxit

Ok I'll check the refrigeration fluid when I get a chance then come back when I have more info.
Thanks!

askingxforxit

Just a thought, is there a way to electrically test the the ac compressor and or clutch to see if its working??

DuG

I would say you can check voltage for the clutch command first (to know if you have a command from control unit)
but then clutch can be on and the compressor broken
you should control the pressure with compressor working and clutch under voltage to know

excuse my english level :~

askingxforxit

maybe u should invest in a set of r134 pressure gauges :/

askingxforxit

Would I be testing for voltage at the relay?

DuG

u mean I ?

DuG

meaning you...

DuG

I'm looking for the electrical scheme

askingxforxit

Ah lol yes I mean "i" meaning me haha. Thanks!

DuG

got the scheme
mp if you need it