Midea MOC-09CFN1-BS0W, Service Manual

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9.2 Outdoor unit error display
standby operating
LED1 slow flashing on
LED4 on on
The picture of PCB above is only for reference.
LED 4 is a red light and for the PCB POWER display.
LED 1 is a yellow light. After power on, it will be slow flash when the unit is in standby and quick
flash(2.5Hz) if the unit has some problems.
LED 6(green) and LED5(red) are two lights controlled by the compressor drive chip. Below is
meanings for those lights.
No. Problems LED6
(Green)
LED5
(Red)
IU display
1 standby for normal O X
2 Operation normally X O
3 IPM malfunction or IGBT over-strong current protection
☆
X P0
LED1
LED4
(red)
LED5
(red)
& LED6
(green)