Correct Wiring Problem to the ECM Board

Correct the Control Wiring Problem to the ECM Fan Control Board

Pay close attention to any self diagnostic features that may be built into the PC board. Follow the manufactures instructions when reading  fault codes.  NOTE: some manufacturers incorporate the fan control board as part of the thermostat or may use serial communications between the thermostat and fan board and/or the ECM control module.

Home Page              Back

2 ECM Low Voltage