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8 - CONTROL
code A indicates the presence of an anomalous situation that does not affect the unit operation
code B indicates the unit compressor stop.
code C indicates the unit total stop
C6 protection about T4 temperature too high C
C7 protection about T4temperature too low C
P0 High discharge temperature protection B
P1 High pressure protection B
P2 Low pressure protection B
P4 High current protection B
P5 High T3 temperature protection in cooling mode B
P7 High T2 temperature protection in heating mode B
P9 SUPPLY DC fan protection C
PA EXHAUST DC fan protection C
PP Insufficient protection of discharge superheat B
L0 Module protection C
L1 Low Voltage Protection C
L2 High Voltage Protection C
L3 Reserved C
L4 MCE fault C
L5 Zero speed protection C
L6 Reserve C
L7 Phase loss C
L8 Frequencies change more than 15 Hz C
L9 Frequency difference 15 Hz C
LA Compressor Overcurrent/Overload Protection C
LC Compressor Current Sampling Circuit Fault (Reserved) C
LH Compressor Start-up Failure (Reserved) C
CA Electric Auxiliary Heat Fault , It needs to be re-energized to recover A
CB Installation of Tc Sensor and T4 Sensor B
CC Electrical Filter Fault, It needs to be re-energized to recover A
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