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Discussion Starter #1 (Edited)
UPDATE:

I now think it is the fan as the humming sound kicks on after the heater starts....as soon as I manually turn the fan on at this point, the humming stops and the fan works fine. Can I keep the fan running all the time until I get it repaired?


Hi All,

Not a HVAC tech so I thought one of my friends could give me some safety advice.

About an hour ago, our Trane heater made a strange humming noise once it started. I think it may be the blower/capacitor? I have read some similar issues on other forums but nothing exactly like the problem I am having. I first thought it was the fan which is set to auto, but I went to start the fan manually with no problem. I am worried with 15 degree weather tonight turning off the heat. But I am more worried that something may burn up and cause a fire. Any recommendations...can I go to sleep and worry about it in the morning???

Thanks,

Jeff
 

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As long as nothing is obviously burning or sounding strange, the fan can run 24/7. Alot or people do this to improve circulation in their house. Higher electricity bill, but supposedly the moving air is better for you. I'd get it checked though if you have never had an issue, or don't want it running all the time.
 
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