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Old 05-03-2009, 10:14 PM   #1
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Fan not blowing


I have a 10 year old house. Just last night the air stop blowing through the vents. The a/c unit outside is coming on but no air from the vents. I tried to switch the heater on to check if any air would blow, nothing. All I get is the burning smell. The HVAC unit is up stairs. I do not hear anything. I tried to switch to fan on on the digital thermostat and get nothing. Any advice? The outside a/c unit comes on and off when I switch my thermostat.

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Old 05-04-2009, 12:03 AM   #2
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Fan not blowing


Sounds like blower motor.

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Old 05-04-2009, 07:38 AM   #3
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Fan not blowing


Yeah sounds like a blower motor bad or capacitor.

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Old 05-04-2009, 12:36 PM   #4
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Fan not blowing


How can you tell if it's the capicator. And how tough is it to replace this blower. I work of vehicles for a living and know my way around cars.
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Old 05-04-2009, 04:10 PM   #5
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Fan not blowing


It also might be the blower motor control module if it has one (mounted to and beneath motor) and not the motor itself or the capacitor. I have a 10-year-old 1998 Carrier 4-ton heatpump and it was blowing about one control module a year for a while (a design defect I think.)
It got so bad that I keep one of those $200+ control modules on hand, and learned to change it myself, but it hasn't blown one in a couple of years now. Excessive moisture usually causes it, but we had a drought last year, and this year aint over. LOL
Mike
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Old 05-05-2009, 06:58 AM   #6
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Fan not blowing


I went upstairs to check the blower last night and all it does is hummmmm. Removing it today to replace it. Thank you for the advice.
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Old 05-05-2009, 03:31 PM   #7
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Fan not blowing


Hum---might be a transformer. Get your meter out and check it out. Alot easier and cost a whole lot less than a motor. Goodluck

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