E1: Refrigerant system high-pressure protection
E2: Anti-freezing protection
E4: Compressor exhaust high-temperature protection
E5: AC over-current protection
E6: Communication failure between indoor unit and outdoor unit
E8: Anti-high temperature protection
H6: No feedback of indoor fan motor
C5: Jumper cap malfunction protection
F0: Refrigerant Leakage Protection
F1: Indoor ambient sensor open or short circuit
F2: Indoor tube sensor open or short circuit
F3: Outdoor ambient sensor open or short circuit
F4: Outdoor tube sensor open or short circuit
F5: Exhaust sensor open or short circuit
F6: Overload limit/drop frequency
F8: Over current limit / drop frequency
F9: High exhaust temperature limit / drop frequency
PH: Over voltage protection for PN
U5: AC current detect circuit malfunction
U4: Compressor reverse protection
P5: Over compressor phase current protection
b5: Inlet tube sensor malfunction
L3: Outdoor DC fan motor malfunction
b7: Outlet tube sensor malfunction
FC: Door malfunction
FE: Compressor overload sensor malfunction
H1: Defrosting
H2: Static clearing dust protection
H3: Compressor over load protection
H4: System abnormal protection
H5: IPM protection
HC: PFC protection
H7: Compressor loss step protection
H0: Heating anti-high temperature drop frequency
Lc: Startup failure
U2: Compressor protection against loss of phase
U1: Compressor phase current detection circuit malfunction
HE: Compressor demagnetization protection
EE: Loading EEPROM malfunction
P6: Communication failure between main board and driver board
PU: Capacitor charge malfunction
P7: IPM sensor circuit malfunction
P8: IPM high temperature protection
U3: PN voltage drop protection
PL: Low PN voltage protection
Pc: Current detect circuit malfunction or Current sensor malfunction
Ld: Compressor loss of phase protection
LE: Compressor locked rotary protection
EU: IPM over temperature limit / drop frequency
U7: 4-way valve reversal abnormal
U8: Disconnection of the exhaust temperature sensor
U9: AC power zero voltage detect error
FA: Over tube temperature drop frequency
FH: Anti-freezing limit / drop frequency
oE
