I know someone has the easy answer because I'm out of ideas.
Trying to repair the air conditioner on a 96 C20 chevy van.
Here is what I know so far:
1. 20 A fuse good
2. freon pressure switch working ok (has continunity)
3. Diode on compressor clutch good.
symptoms:
1. Clutch on compressor not engaging
2. heater fan not operating
What happened before all this:
1. Air was working but low on freon (R134)
2. freon and leak sealer injected in system.
3. Unit worked for about 45 minutes
4. blew 20A fuse
5. replaced fuse, no blower/compressor operation
6. 20A fuse did not blow again
My thought is maybe a fuse link in the wiring. I dont have a schematic of this unit so troubleshooting is by guess.
Anyone got any ideas?
Larry