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Re: a/c compressor not engaging [message #346477 is a reply to message #345140] Thu, 15 August 2019 11:28 Go to previous message
JohnL455 is currently offline  JohnL455   United States
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
Senior Member
Re the delay relay. You can simply repatch the connectors around it and leave it there. It was a retrofit add on in 77. It was to allow the dash vent door to open by vacuum before the Hi blower blast fought the door when going from OFF to MAX AC. The simple fix is to go to NORM AC first using a lower fan speed then move it to MAX. I never use OFF position and leave mine in VENT as a default. I want fresh air coming in whenever coach is running. This works driving on cool mornings where you can warm the air as needed, then go to cold outside air as sun warms and then just move lever to NORM AC as the greenhouse heats up. You will get slightly less voltage drop by eliminating the delay as every connection and added wire drops it a tenth or so. It adds up

John Lebetski
Woodstock, IL
77 Eleganza II
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