Outdoor Unit Error Display; For 9K-24K Outdoor Unit - Midea CTBU-09HWFN1-M Service Manual

16.2 Outdoor unit error display

For 9K-24K outdoor unit:

No. Problems
1 standby for normal
2 Operation normally
3 Compressor drive board EEPROM error
4 IPM malfunction or IGBT over-strong current protection
5 Over voltage or too low voltage protection
6 Inverter compressor drive error
7 Inverter compressor drive error
Communication malfunction between main control board
8
and driver board
LED2
(Green)
89
LED1
IU display
(Red)
O X
X O
☆
O
☆
X
O O
☆
X
☆
O
☆ ☆
E5
P0
P1
P4
P4
P4