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Old Sep 3, 2017 | 12:11 PM
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St. Jude Donor '16-'17-'18,'19
Default A/C Help
What could make the A/C come on when the switch is off on my75?
Thanks for any help you can give.
Bob
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Old Sep 3, 2017 | 12:34 PM
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I would suspect the rotary switch in the console.
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Old Sep 3, 2017 | 01:02 PM
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Originally Posted by ntfday
I would suspect the rotary switch in the console.
Thanks, I thought the rotary switch just controlled the vacuum.
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Old Sep 3, 2017 | 02:03 PM
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My 76 should be similar to your 75 and IIRC there's an electrical switch on the front end of the rotary switch. You could also have a problem at the AC relay or the pressure switch.
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Old Sep 3, 2017 | 03:00 PM
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My 73 was on all the time and I found the compressor micro switch down by the rotary switch was made all the time. (there are two switches here)
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