A101_A: ECM Blower Motor Communication Failure
Status
This is a critical alarm, the Air Handler will not operate in any mode.
Description
Control is unable to communicate with blower motor module. This fault is limited to the RHMV Air Handlers.
Cause
1. Wiring harness from air handler control to blower motor module damaged, corroded, loose, or disconnected.
2. Internal fault on motor module.
3. Defective Control Board.
Solution
1. Repair, replace or reconnect harness between blower motor module and control board.
2. Replace Blower motor module.
3. Replace Control Board.
