mi928s

I have a 1982 928 and for some reason the compressor it wont kick on it has freon and it work fine last summer.
Thank you
Guillermo
Brandon Florida

H2

Check the fuses first. Then make sure the wire running down to you compressor hasn't somehow come loose or is shorting. Also, it could be that the AC controller relay has burned out. This is quite common on later cars anyway. It's not exactly a simple replace relays thing but would require a search of the Rennlist archives for details on how to solder in a Radio Shack replacement.

Harvey

dr bob

"it has freon" Checked with pressure gauges to make sure? While there are possible control problems that might cause your compressor to not run, the predominant cause is freon leaks. Unfortunately, "worked last summer" is only a loose/one-way indicator of how it might work this year.

There's a safety switch on the freon piping near the receiver-drier, right front corner in front of the radiator and condenser. Pull the connector off the switch, and use an ohmmeter or continuity tester to see if the switch is closed, zero or very few ohms. That would indicate adequate freon in the system, and perhaps a control problem. If the switch is open, high or infinite resistance measured between the switch terminals, then enough freon has leaked out to cause the compressor to be protected. If that's the case, fix the leaks, evacuate and recharge the system, and you should be good to go.