Last night, a terribly loud noise was coming from the gas heater. Then, there wasn't any heat blowing. Previous days, I heard some squealing like a fan belt sound. The flames will all ignite, and the thermostat seems ok. Is it practical to just replace the blower by a technician? Now there's and intermittent slight buzzing noise to the motor. It's an "American Standard" furnace.
2006-12-22 09:28:23 · 7 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
How old is the furnace? Chances are it's the bushing on the blower motor itself. You have to call a tech to come out and change the motor for you. If your furnace is older then you might be better off just replacing the whole thing.
2006-12-22 09:33:43 · answer #1 · answered by Doug H 2 · 0⤊ 0⤋
The first switch will turn on your blower after the burners come on and heat up the plenum. I'm guessing there's a dial or some type of pointer on it. The temperature it's pointing to is the temperature the blower should come on at. Try turning it up to see if the blower shuts off. The second switch is a limit switch that shuts the gas valve off in case your blower doesn't start. If you turn the fan control up to 120, make sure the limit gets set at least 20 degrees or so higher. If the blower doesn't shut off, the blower control is probably bad. Also, make sure you have the fan switch on your thermostat set to Auto :)
2016-05-23 16:38:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Sounds like your ''fan drive belt'' disintegrated. Remove the access plate to the blower and you should find the remnants of your old belt. On the access plate you may also find a label listing the required replacement belt number. Its an easy job to install a belt, so you may want to try it yourself. In any case if you take it apart and find what I said to be true, the repair person will have a harder time conning you into a new motor!
2006-12-22 10:56:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It sounds like the bushings in the motor went out. The squealing could be from the motor or the squirl cage (fan) is rubbing on the casing due to motor wear. The buzzing is the motor trying to kick on and the thermal overloads are kicking it out (to prevent a fire). I would have the motor replaced by a qualified Tech.
19 years apartment sevrvice tech.
2006-12-22 10:13:49 · answer #4 · answered by Anonymous · 1⤊ 0⤋
put a new belt on? Check the bushings for wear
2006-12-22 09:42:34 · answer #5 · answered by Anonymous · 0⤊ 0⤋
blower seized up and broke the belt? you didn't say if you checked the belt. does the blower turn smoothly by hand?
2006-12-22 09:34:19 · answer #6 · answered by car dude 5 · 1⤊ 0⤋
I would suggest getting a heating specialist in to do the tech work.
2006-12-22 09:36:14 · answer #7 · answered by cowboydoc 7 · 1⤊ 0⤋