Troubleshooting
Electrical Control 243
LEDs’ for the indication of outdoor trouble(for 36-60K models)
Type Contents LED1 LED2 LED3
Trouble Phase sequence Flash Off Off
Trouble Lack of phase(A,B) Flash Off Off
Trouble Lack of phase(C) Off Off Off
Trouble Low pressure protection Flash Flash Off
Trouble Overload of current Off Off Flash
Trouble T3 temperature sensor open or short circuit
Off Flash Flash
Trouble
Temperature sensor open or short circuit of
T4 or T5 or high pressure protection
Off Flash Off
Trouble High temperature protection of condenser
Flash Flash Flash
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
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