1. Failure code
1.1 Outdoor coil temp. sensor failure: flash once
1.2 Compressor discharging temp. sensor failure: flash twice
1.3 Pressure switch failure: three times
1.4 Over current protection: four times
Indicator function:
When LED is used as failure indication, refer to the failure code.
Electric control board and function for central air conditioner
Heat pump control board
Note: 1/2 second flash sycle indicates problem indication.
Failure indication: LED will flash for alarm. Flash frequency: 0.5 second on and 0.5 second off with a 2
seconds interval between flashes.
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Central Air Conditioning Model: Heat Pump, HR13-D1
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