M thermal Mono
202008 35
P5 High Temperature difference protection between water inlet and water outlet of the plate heat exchanger.
P6 Inverter module protection
Pb Anti-freeze mode protection
Pd High temperature protection of refrigerant outlet temp. of condenser
PP Water inlet temperature is higher than water outlet in heating mode
L0 DC compressor inverter module fault
L1 DC bus low voltage protection (from inverter module mostly when compressor running)
L2 DC bus high voltage protection from DC driver
L4 MCE fault
L5 Zero speed protection
L7 Phase sequence fault
L8 Compressor frequency variation greater than 15Hz within 1 second protection
L9 Actual compressor frequency differs from target frequency by more than 15Hz protection
Midea CAC
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