i just got a 95 Dx hatchback. i turn on the A/C and all i get is hot air. i check the fuses and they are all good. the condenser fan runs but the compressor clutch is not turning i check it by moving it with my hand and it does turn smoothly. Can anyone help thanks.

 

If refrigerant pressure on the high side is too high or low, the A/C pressure switch in the receiver/dryer will prevent the compressor clutch from engaging.

When you push the A/C button on, does the engine idle speed increase?

If you switch the compressor clutch relay and condenser fan relay, does the condenser fan now fail to run but the compressor clutch now engages?

 

When I hit the a/c button the idle speed changes but not much. ill check switching the relays tonight when I get off work. Thanks for your help

 

If the idle speed bumps up when the A/C button is pushed, it tells you that the ECU receives the "on" signal from the heater control panel and that the A/C pressure switch is closed (=good). This means that the possibilities are a bad clutch relay, a bad thermal protector on the compressor, or a bad or improperly gapped compressor clutch. The results of swapping the relays should begin to limit the field further.

 

where is the clutch relay located?

 

Check the line to see if there is any refrigerant in it. Just take off the cap and press down on the valve to see if any is released. this should let you know if any is in there. It sounds as if you have no refrigerant.

 

 

Yes it has but it looks like it had low pressure.