Carrier Furnace Exhaust Fan Noise

So the gas will build up instead of the gas igniting immediately.

Carrier furnace exhaust fan noise.

Having dirty burners in your furnace can cause a delay in ignition. 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. The blower wheel blows air out of the furnace and through the house. 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.

The sound went away and the system is functioning. Is there also a screw bolt at the end of the shaft that must be. If you hear a sound like a loud bang or boom coming from your furnace you would certainly be wise to be concerned. The hvac professional may not be able to easily solve your problem aside from the maintenance service i mentioned above.

One common cause of a loud bang or boom is a dirty burner in your furnace. Several problems can lead to a noisy squeaky fan. The blower wheel is attached to the blower motor shaft with a set screw. 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.

Check the set screw to ensure that it is properly tightened. If the set screw is loose the blower wheel will wobble on. If you block this off to reduce the noise then your gas furnace will not operate properly and it could be dangerous. I traced the sound to the electric exhaust blower motor ao smith model je1d013n.

Inducer motor hc21ze125 https amzn to 2wnirzi inducer fan la660003 https amzn to 2. Carrier weathermaker 8000ts model 58cta070 10108 parts replaced. The motor shaft and the wheel will be noisy as it turns. Not only are furnace exhaust fan noises disruptive they may also indicate potential problems within your furnace that need to be repaired immediately.

The blower will make noise if the ductwork is undersized. A furnace exhaust fan in need of repair is of particular concern since it is such a critical component of your system. Is the motor difficult to replace.