Carrier Furnace Exhaust Fan Noise

A furnace exhaust fan in need of repair is of particular concern since it is such a critical component of your system.

Carrier furnace exhaust fan noise.

I have a carrier gas furnance that was making a loud whining noise. The blower wheel is attached to the blower motor shaft with a set screw. The blower will make noise if the ductwork is undersized. Inducer motor hc21ze125 https amzn to 2wnirzi inducer fan la660003 https amzn to 2.

Having dirty burners in your furnace can cause a delay in ignition. The hvac professional may not be able to easily solve your problem aside from the maintenance service i mentioned above. Several problems can lead to a noisy squeaky fan. 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.

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. One common cause of a loud bang or boom is a dirty burner in your furnace. Is the motor difficult to replace. I see the three mounting brackets clearly.

Ours is original equipment and has been in service for 25 years but there is a wide distribution in lifetime for this component. I traced the sound to the electric exhaust blower motor ao smith model je1d013n. The sound went away and the system is functioning. If you block this off to reduce the noise then your gas furnace will not operate properly and it could be dangerous.

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. Is there also a screw bolt at the end of the shaft that must be. Not only are furnace exhaust fan noises disruptive they may also indicate potential problems within your furnace that need to be repaired immediately. If you hear a sound like a loud bang or boom coming from your furnace you would certainly be wise to be concerned.

So the gas will build up instead of the gas igniting immediately. If the set screw is loose the blower wheel will wobble on. The motor shaft and the wheel will be noisy as it turns.