CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08) 37
Troubleshooting
5.2 General Troubleshooting
5.2.1 Error Display (Indoor Unit)
When the indoor unit recognizes one of the errors from the table below,
the operation lamp will flash in a corresponding series, the timer lamp
may turn on or begin flashing, and an error code will be displayed. These
error codes are described in the following table:
Operation
lamp flashes
Timer lamp LED Display Error Information Solution
1 time
OFF E0
Indoor unit EEPROM parameter error Page 45
2 times
OFF E1
Indoor / outdoor units communication error Page 46
3 times
OFF E2
Zero-crossing signal detection error Page 47
4 times
OFF E3
The indoor fan speed is operating outside of the normal range Page 48
5 times
OFF E4
Indoor room temperature sensor T1 is in open circuit or has short
circuited
Page 50
6 times
OFF E5
Evaporator coil temperature sensor T2 is in open circuit or has short
circuited
Page 50
9 times
OFF E7
Indoor PCB /Display board communication error Page 51
7 times
OFF EC
Refrigerant leak detected Page 51
1 time
ON F0
Overload current protection Page 53
2 times
ON F1
Outdoor ambient temperature sensor T4 open circuit or short circuit Page 50
3 times
ON F2
Condenser coil temperature sensor T3 is in open circuit or has short
circuited
Page 50
4 times
ON F3
Compressor discharge temperature sensor TP open circuit or short
circuit
Page 50
5 times
ON F4
Outdoor unit EEPROM parameter error Page 45
6 times
ON F5
The outdoor fan speed is operating outside of the normal range Page 48
1 time
FLASH p0
IPM malfunction or IGBT over-strong current protection Page 54
2 times
FLASH p1
Over voltage or over low voltage protection Page 55
3 times
FLASH p2
High temperature protection of IPM module Page 56
5 times
FLASH p4
Inverter compressor drive error Page 57
Table 9.
For other errors:
The display board may show a garbled code or a code which is undefined
by the service manual. Ensure that this code is not a temperature
reading.
Troubleshooting:
Test the unit using the remote control. If the unit does not respond to
the remote controller, replace the PCB of the indoor unit. If the unit
responds, replace the display board.
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