TABLE OF ERROR CODES
54
P5 25
High temperature dierence between water side heat exchanger
water inlet and water outlet temperatures protection
P6
H4
26
43
Inverter module protection
L0 - Inverter module protection
L1 - DC bus low voltage protection
L2 - DC bus high voltage protection
L4 - MCE error
L5 - Zero speed protection
L7 - Phase sequence error
L8 -
Compressor frequency variation greater than 15Hz within one
second protection
L9 -
Current compressor frequency diers from set frequency by more
than 15 Hz protection
Pb 31 Water side heat exchanger antifreeze
Pd 33
High temperature protection of refrigerant outlet temperature of
condenser in cooling mode
PP 38
Water side heat exchanger inlet temperature is higher than outlet
temperature in heating mode or DHW mode
bH 112 PED board error
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