Allied 4DHV Mini-Split Series - Error Codes and Troubleshooting; Error Code E3;E5 Diagnosis

508067-01Issue 2016Page 66 of 75
Error Code: E3/E5 (continued)
1. Indoor or Outdoor DC Fan Motor(control chip is in 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 has problems and need to be replaced.
•
DC motor voltage input and output (voltage: 220-240V~) 

No. Color Signal Voltage
1
Red
Vs/Vm 280V~380V
2 --- --- ---
3 Black GND 0V
4 White Vcc 14-17.5V
5
Yellow Vsp
0~5.6V
6 Blue
FG
14-17.5V


2. Outdoor DC Fan Motor (control chip is in outdoor PCB)
Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the
fan motor must has problems and need to be replaced. otherwise the PCB must has problems and need to be replaced.
3. Indoor AC Fan Motor
Power on and set the unit running in fan mode at high fan speed. Aer running for 15 seconds, measure the
voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply) or 50V(115V
power supply), the PCB must has problems and need to be replaced.