Heat Controller BG-123G User Manual
Fan motor speed can’t change.
(Electric Control)
Check the wiring.
Check the capacitor of fan motor. Replace if failed.
Replace the PCB.
Check the resistance of fan motor and replace the motor if failed.
No
No
No
No
No
No
No
No
Not heating or not heating enough.
(Cooling and Electric Heater)
Check the mode.
Check whether the airflow speed is too low.
Check the specification of PTC-heater.
Check the heat load of the room.
Fan motor speed can’t change.
(Mechanical Control)
Check whether the selector is damaged.
Check whether the ca pacitor of fan motor is in the rang e from 95 % to
105% of rated capacity. Replace the capacitor if failed.
105% of rated capacity. Replace the capacitor if failed.
Check the resistance of fan motor and replace if failed.
Service Manual
Room Air Conditioner with R-410A
Heat Controller, Inc.
26