Loud noise from the furnace is terrible. You hear them every moment, and one thing that you want to do - fix the furnace. Most common solution for removing loud noises is to replace the blower fan motor. The blower wheel blows air out of the furnace and through the house. The blower wheel is attached to the blower motor shaft with a set screw. If the set screw is loose, the blower wheel will wobble on the motor shaft, and the wheel will be noisy as it turns. Check the set screw to ensure that it is properly tightened. Next, inspect the wheel for damage. If the blower wheel is damaged, replace it. So, in this article you will find simple instruction for replacing the blower fan motor in American Standard auh1b060a9361aa.
Since the motor power wires are connected to a control board that is often located in an upper compartment, two access panels may need to be removed. If applicable, you should ensure the motors run capacitor is discharged by placing a screwdriver with an insulated handle across the terminals. Avoid touching the screwdriver blade. Disconnect the wires from the capacitor terminals, if required. Uninstall a drain trap assembly, and the attached hoses to access the fan motor. If necessary, you may need to disconnect the thermostat wires from the control board to move them out of the way. Note the orientation of the blower motor power wires, then disconnect them from the control board. Cut any zip ties if required. Move any additional obstructions out of the way. If necessary, note where the blower assembly mounting rails are positioned. Now unthread the screws securing the rails. Carefully slide out the blower assembly. Use an adjustable wrench to loosen the set screw to release the blower wheel from the motor shaft. If required detach the grounding wire. Cut any zip ties securing the motor wires. Now unthread the bolts or screws securing the blower motor. Note the orientation of the old motor, then lift it off of the blower housing. When installing a new blower motor, you should confirm that the motors capacitor rating matches the existing run capacitor. If not, you will need to replace the capacitor with the required one. Insert the fan motor shaft into the blower wheel, as you properly align the motor on the housing. Thread and tighten the bolts or screws to secure the motor. Use zip ties to secure the wires and reattach the grounding wire if required. With the flat side of the motor shaft facing the set screw, center the blower wheel in the housing and tighten the set screw. Realign the blower assembly mounting rails with the slots on the support, and slide the assembly into position. Replace the screws to secure the rails. Reinstall any components you removed earlier. Attach the blower motor power wires to the appropriate terminals on the control board. Connect the capacitor wires, as required. If applicable, reconnect the thermostat wires as well. Use zip ties to remove any slack from the wiring. With the new blower motor installed, replace the access panel or panels. Turn the power supply back on, and your furnace should be ready for use.
We know that process isn’t simple, so if you feel difficulties in the process of replacing - don’t hesitate to contact our customer support and arrange a meeting!
