Fan won't stay on

Questions about repairs and parts for Nordyne furnaces, air conditioners and heat pumps for manufactured homes including Intertherm, Mac and Miller brands. Click here for Nordyne parts.

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sfcthill
Posts: 3
Joined: Tue Jan 19, 2010 5:30 pm

Hello,
First time caller (hehe)
I have a furnace in my Dbl Wide that is a nordyne,
Model MGBA-056ABFC-01
Serial MGB9405-00677
At first, The pilot would go out everytime the blower kicked on. I cleaned the Gas orifice and now the pilot stays on but the fan will only run for approx 20 seconds then shuts off. After a minute or so, it will do the same. New Thermostat and Thermocouple. Any ideas?
One lesson learned: If the Wife ain't warm, Ain't NO-ONE happy. HELP
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Robert
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Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Hi,

Open control panel and look on back wall for two small switches, limit switch and fan switch.


Fan switch should be on the right.


When blower shuts off during cycle, place the volt meter probes across the fan switch terminals and see if you read 120vac.

IF so:

When blower starts back up, do it again and see if you now read 0vac.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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