It's been in the 70s here and last week we had some rain and I had to use the defog. when I turned it on the compressor made a rattling noise for a few minutes and then the noise stopped! A few days later I noticed some water dripping under the tranny and opened the hood to find the a/c low side hose all frozen up and the compressor running with the system turned off!
I disonnected the wires at the filter dryer and it still kept running.
I had to remove the plug from the top of the compressor to get it to stop.
I hope the main control unit is causing this as I still have the old one I replaced about a year ago when I had no heat.
I assume the wires at the filter dryer are not just a simple loop to the compressor but sends a signal to the main unit to start/stop it?

Just trying to find some info on what may be the problem bfr I wiggle the main unit out of the dash...........not fond of pulling on the wood trim and sutch if I dont have to!

All the other functions on the control unit seem fine.

Any and all adivise will be greatly apprecitated!

__________________
[B]AlanT
BELEN NM


93 dodge cummins truck~old reliable
01 Volvo AWD XC70 Turbo Wagon
74 450 SE on the way out!
Recent: 1972 Toronado 56k on the clock!

IF it plugs in, lights up, makes noise,
I'M ON IT!