BEARING 4280A20004M

Unusual noise from an indoor blower can be caused by a worn blower wheel bearing. This replacement bearing provides a smooth support point that allows the wheel to rotate while moving air across the room. Inspect the wheel for cracks, dirt, rubbing marks, or looseness, since these problems can produce similar sounds. Turn off the unit at the breaker and verify that power is disconnected before opening the cabinet. Keep track of screws, clips, and wheel position during removal. Install the bearing in the correct direction, avoid forcing it into place, and spin the wheel by hand to check for rubbing before reassembly.