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Old 07-09-2014, 03:53 PM   #1
Join Date: Jan 2011
Location: Pueblo, CO
Posts: 42
A/C Heater Control Issues 95 Ford

I am in need of some assistance. I have a Ford 95 Dolphin with 460 engine. I have had three failures of the dash A/C Heater control unit--each time the A/C button when activated will overheat and melt the plastic inside the unit. It appears that the issue is with the blue wire which I assume goes to a switch/solenoid/relay that activates the A/C compressor. It is not obviously fused and I need to know to what and where the wire goes. Does anyone know the schematic of this system? Any help would be appreciated. Jerry

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Old 07-10-2014, 09:34 AM   #2
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Join Date: Jul 2014
Posts: 269
I think after the second one I would have started looking for the cause? perhaps for some reason the AC comp draws more amps than the switch is rated for? maybe try installing a 20 amp CB and a bosch relay

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Old 07-10-2014, 10:14 AM   #3
Join Date: Jan 2011
Location: Pueblo, CO
Posts: 42
Hello: I agree that I need to find the cause this time--but, I opened the unit the first time and found a broken spring jammed and thought that was the cause and on the second unit I discovered a bad contact in the plug, replaced the unit and the plug and now have had the same failure. Thus need to find the other end of the wire. Hope that someone will know something about 94/95 Ford A/C circuit. Thanks for the reply.
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ford, heater

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