Carrier 40MBQB09D-3 Service Manual

52
Index
1:
DC fan motor (control chip is inside fan motor)
Power on and when the unit is in standby, measure the voltage of pin1 -- pin3, pin4--pin3 in fan motor connector. If the value of the voltage is
not in the range showing in below table, the PCB must have problems and need to be replaced.
DC motor voltage input and output
NO. Color Signal Voltage
1 Red Vs/Vm 200~380V
2 --- --- ---
3 Black GND 0V
4 White Vcc 13.5~16.5V
5 Yellow Vsp 0~6.5V
6 Blue FG 13.5~16.5V
Vs
Vcc
Vsp FG

Carrier 40MBQB09D-3 Specifications

General

Brand	Carrier
Model	40MBQB09D-3
Category	Air Conditioner
Language	English