Table of Contents
Advertisement
ELECTRICAL WIRING
78
Self-Diagnosis Function
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condi-
tion.
- Error mark is displayed on display window of indoor units and wired remote controller, and 7-
segment LED of outdoor unit control board as shown in the table.
- If more than two troubles occur simultaneously, lower number of error code is first displayed.
- After error occurrence, if error is released, error LED is also released simultaneously.
Error Display
1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number.
Ex)
Error No.
* Refer to the DX-Venitilation manual for DX-Venitilation error code.
Display
0 1
- Air temperature sensor of indoor unit
0 2
- Inlet pipe temperature sensor of indoor unit
Communication error : wired remote
0 3
-
controller ÷ indoor unit
0 4
- Drain pump
Communication error : outdoor unit ÷
0 5
-
indoor unit
Outlet pipe temperature sensor of indoor
0 6
-
unit
0 9
- Indoor EEPROM Error
1 0
- Poor fan motor operation
1 7
- Inlet Air temperature sensor of FAU
1 Master Outdoor Unit Inverter Compressor IPM Fault
2 Slave1 Outdoor Unit Inverter Compressor IPM Fault Slave1 Outdoor Unit Inverter Compressor Drive IPM Fault
2 1
3 Slave2 Outdoor Unit Inverter Compressor IPM Fault Slave2 Outdoor Unit Inverter Compressor Drive IPM Fault
4 Slave3 Outdoor Unit Inverter Compressor IPM Fault Slave3 Outdoor Unit Inverter Compressor Drive IPM Fault
Inverter Board Input Over Current(RMS) of
1
Master Outdoor Unit
Inverter Board Input Over Current(RMS) of
2
Slave1 Outdoor Unit
2 2
Inverter Board Input Over Current(RMS) of
3
Slave2 Outdoor Unit
Inverter Board Input Over Current(RMS) of
4
Slave3 Outdoor Unit
Repeat
Error unit's number
Error No. of Compressor
Title
Cause of Error
Air temperature sensor of indoor unit is open or short
Inlet pipe temperature sensor of indoor unit is open or short
Failing to receive wired remote controller signal in indoor
unit PCB
Malfunction of drain pump
Failing to receive outdoor unit signal in indoor unit PCB
Outlet pipe temperature sensor of indoor unit is open or
short
In case when the serial number marked on EEPROM of
Indoor unit is 0 or FFFFFF
Disconnecting the fan motor connector/Failure of indoor
fan motor lock
Air temperature sensor of indoor unit is open or short
Master Outdoor Unit Inverter Compressor Drive IPM Fault
Master Outdoor Unit Inverter Board Input Current excess
(RMS)
Slave1 Outdoor Unit Inverter Board Input Current excess
(RMS)
Slave2 Outdoor Unit Inverter Board Input Current excess
(RMS)
Slave3 Outdoor Unit Inverter Board Input Current excess
(RMS)
Hide quick links:
Advertisement
Table of Contents
