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84
16.2 Outdoor unit error display
For 9K-24K outdoor unit:
No. Problems
LED2
(Green)
LED1
(Red)
IU display
1 standby for normal O X
2 Operation normally X O
3 Compressor drive board EEPROM error O
☆
E5
4 IPM malfunction or IGBT over-strong current protection
☆
X P0
5 Over voltage or too low voltage protection O O P1
6 Inverter compressor drive error X
☆
P4
7 Inverter compressor drive error
☆
O P4
8
Communication malfunction between main control board
and driver board
☆ ☆
P4
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