| [GMCnet] Fan motor [message #356320] |
Wed, 01 July 2020 18:28  |
Hanson Email
Messages: 110
Registered: March 2020
Karma:
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Senior Member |
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I have an electrical problem and I'm sure it will bite my tush fairly soon.
I have always had a slight high pitch tone with my HVAC fan. It runs on low
constantly in my unit and carries that same tone thru the first 3 and
becomes louder when on High mode. It varies slightly with acceleration of
the motor. And no, it's not the alternator but sounds like that. Well, today
when off, it started screaming like a banchee. I stopped and turned the
engine off then back on and the screaming went away. Definitely in the fan
motor. So what's failing? Seems like it is getting a different electrical
load which makes it squeal.
Dean Hanson
75 Avion, returning to life from a 10 year sleep. I do have one year of
running about 30 miles a month, while I fix up those twin beds.
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