GIWEE R32 - Page 36

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 DC fan motor voltage: Measure the voltage when the unit is in standby.
No.
Color
Signal
Voltage
1
Red
Vdc
150~340V
2
--
--
3
Black
GND
0V
4
White
Vcc
14~17.5V
5
Yellow
Vsp
0~5.6V
6
Blue
FG
14~17.5V
 AC fan motor: Power on and set the unit running in fan mode at high fan speed. After
running for 15 seconds, measure the voltage of red and black wire. If the value of the
voltage is less than 100V(208~240V power supply), the PCB must has problems and need to
be replaced.
5.4.6 E9 (IDU) Communication fault of wired controller
Troubleshooting and repair:
a) Check the connection between wired controller and indoor PCB.
b) Change another wired controller.
c) Change a new indoor PCB.
5.4.7 HC Room card port disconnected port
Possible reason:
 Short circuit is not connected in CN2 port
 Faulty problem
Troubleshooting and repair:
a) Check if there is a short circuit in CN2 port.
b) Change a new PCB.