Carrier Furnace Exhaust Fan Noise

The blower wheel is attached to the blower motor shaft with a set screw.

Carrier furnace exhaust fan noise.

The blower will make noise if the ductwork is undersized. These fans must run whenever the furnace is lit and they often cycle when the furnace is not blowing warm air because the pilot light is always burning. I traced the sound to the electric exhaust blower motor ao smith model je1d013n. Having dirty burners in your furnace can cause a delay in ignition.

If you block this off to reduce the noise then your gas furnace will not operate properly and it could be dangerous. My carrier natural gas fired furnace has one which makes detectable noise until the main blower comes on and then noise from the inducer fan is drowned out by the main blower noise. So the gas will build up instead of the gas igniting immediately. Several problems can lead to a noisy squeaky fan.

Check the set screw to ensure that it is properly tightened. If you hear a sound like a loud bang or boom coming from your furnace you would certainly be wise to be concerned. A furnace exhaust fan in need of repair is of particular concern since it is such a critical component of your system. One common cause of a loud bang or boom is a dirty burner in your furnace.

The blower wheel blows air out of the furnace and through the house. If the set screw is loose the blower wheel will wobble on. Is there also a screw bolt at the end of the shaft that must be. I see the three mounting brackets clearly.

Inducer motor hc21ze125 https amzn to 2wnirzi inducer fan la660003 https amzn to 2. Is the motor difficult to replace. The sound went away and the system is functioning. Carrier weathermaker 8000ts model 58cta070 10108 parts replaced.

I have a carrier gas furnance that was making a loud whining noise. These fans can be direct drive to an electric motor or attached to a belt and drive wheel assembly if the fan is located far from the motor. Not only are furnace exhaust fan noises disruptive they may also indicate potential problems within your furnace that need to be repaired immediately.