86'928S MeteorGrey

I've had smoke pour out of my AC head unit. (1984) I've posted a full description of what I have found so far on Dwayne's HVAC compressor relay repair procedure thread. Please check it out and reply if you have any suggestions. Thanks!

https://rennlist.com/forums/928-foru...re-w-pics.html

86'928S MeteorGrey

Bump...

Anybody?

I'm going in... Going to pull the components and do some measurements. I'll check the diode and surrounding components, I'm assuming much will be burnt.

fraggle

wow man that's some CHAR.

Replace the relay and see if everything works.

Mark Anderson

Check to see if the compressor coil is drawing too much current

86'928S MeteorGrey

Thanks for the input.

The compressor clutch (coil?) actuated when I applied current. I did use a rather large gauge jumper lead and it didn't get warm. How much current should it draw normally?

Speedtoys

50w.

86'928S MeteorGrey

50w?

So about 4 amps @ 12v ?

GregBBRD

Not that much. I supply a 3 amp fuse with my rebuilt control heads.

However, your short is not on the circuit to the compressor.