Midea MOBA30U-12HN1-Q Service Manual page 247

LEDs' for the indication of outdoor trouble(for 36-60K models)
Type
Trouble
Trouble
Trouble
Trouble
Trouble
Trouble T3 temperature sensor open or short circuit
Temperature sensor open or short circuit of
Trouble
Trouble High temperature protection of condenser
Note:
1. If the LED1-LED3 are flashing slowly, means the system is stand-by.
2. T3: Outdoor condenser temperature sensor
3. T4: Outdoor ambient temperature sensor
Electrical Control
Contents
Phase sequence
Lack of phase(A,B)
Lack of phase(C)
Low pressure protection
Overload of current
T4 or T5 or high pressure protection
LED1 LED2
Flash Off
Flash Off
Off Off
Flash Flash
Off Off
Off Flash
Off Flash
Flash Flash
Troubleshooting
LED3
Off
Off
Off
Off
Flash
Flash
Off
Flash
243