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Re: [GMCnet] a/c compressor not engaging [message #345232 is a reply to message #345216] Sat, 13 July 2019 11:23 Go to previous messageGo to previous message
Deb is currently offline  Deb   Canada
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma:
Senior Member
Hi Ken. Thanks for the crash course! Wink I wasn't aware that there were two power sources for that fan. I just went down to check the high speed fan since that was something I could easily do BEFORE my morning coffee (after I got that weird smell I couldn't remember if i had tested the fan with it running or just in acc). No joy. No fan at all even running. Though it was blowing when I initially got the smell and therefore turned it off. Won't come on again.

Yesterday I pulled that 25A fuse from the panel and it checked out fine on my MM. But I haven't gone point to point with my test light. And haven't looked at the fuse panel itself. So that is next on my list. And Rich (say Hi to Ontario for me), I will check that resistor, as well as pull the motor to see what was going on there that gave me the hot plastic/overheated wire smell from the blower at the end of it all. Something overheated inside that housing.

And Ken H, when I checked the motor directly from the battery, I connected my jump wire right at the connection at the motor housing. But it's possible there's no power getting to it. I'll check that line from the relay to the motor next as well as look at the actual connection. It's another 45 year old spade connector.. I didn't look at the ground. It seemed pretty solid when I last looked at it (June, when the blower quit the first time) but I'll give it a good look this morning.

Even if I do (that's negative)... When I find the problem, I still have to figure out why. I have had 2 issues now with the blower this summer. Overheated & fried one of those plastic OEM connectors in the power line to the motor (the main one with the condenser), and now this. I don't know if this incident and the a/c are related, or coincidental. But I don't think pulling the motor out and giving it a look see and a cleaning could hurt!

But... Coffee and walk the dogs first. Then I can devote my day to test lights and perusing the manual. I have more pieces of paper book-marking pages than I can count right now. I have 2 weeks to get this sorted before I head to Bellingham. Manny tranny on the way!


Deb McWade Logan Lake, BC, CAN GMC Alumnus It's Bigger on the Inside!

[Updated on: Sat, 13 July 2019 11:26]

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