Cooper & Hunter CH-09DKT230VI, Service Manual

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2
3
9.1 Indoor Unit Error Display
Operation
lamp
Timer lamp Display LED STATUS
☆
1 time X E0 Indoor unit EEPROM parameter error
☆
2 times X E1 Indoor / outdoor units communication error
☆
3 times X E2 Zero-crossing signal detection error
☆
4 times X E3 Indoor fan speed has been out of control
☆
5 times X E4
Indoor room temperature sensor T1 open circuit or short
circuit
☆
6 times X E5
Evaporator coil temperature sensor T2 open circuit or
short circuit
☆
7 times X EC Refrigerant leakage detection
☆
1 times O F0 Overload current protection
☆
2 times O F1
Outdoor ambient temperature sensor T4 open circuit or
short circuit
☆
3 times O F2
Condenser coil temperature sensor T3 open circuit or
short circuit
☆
4 times O F3
Compressor discharge temperature sensor TP open
circuit or short circuit
☆
5 times O F4 Outdoor unit EEPROM parameter error
☆
6 times O F5 Outdoor fan speed has been out of control
☆
1 times
☆
P0 IPM malfunction or IGBT over-strong current protection
☆
2 times
☆
P1 Over voltage or over low voltage protection
☆
3 times
☆
P2 High temperature protection of IPM module
☆
4 times
☆
P3* Outdoor ambient temperature too low.
☆
5 times
☆
P4 Inverter compressor drive error
☆
7 times
☆
P6 Low pressure protection(Only for 36K)
O
（
light
）
X
（
off
） ☆（
flash
）
*P3
1) In heating mode, when the outdoor temperature is lower than
-13 F(
-25
℃
)
for 1 hour, the
indoor unit display error code P3.
2) If the outdoor temperature is higher than
-8 F(
-22
℃ )
for 10 minutes and compressor stop for 1
hour or outdoor temperature is higher than
23 F(
-5
℃ )
for 10 minutes, then the unit will return to
work.
* Fault Symptom: The display board shows a garbled code or a code that is not an error code found
in the service manual nor a temperature reading.
Trouble shooting:
Use the
remote controll
. If the unit does not respond to the remote, the indoor PCB needs to be
replaced; if the unit does respond, then the display board needs to be replaced.