Digital display Fault or protect definition
E4 Failure in temperature sensor T4
E6 Failure in temperature sensor T3 in condenser
E8 Failure in temperature sensor T5 on exhaust pipe
E9 One-side over pressure / under pressure
E10 Failure in EEPROM of outdoor unit
E12 Failure in sensor on IPM
E13 Failure in pressure sensor of HLP
E14 standby for T3/T5 sensor has not been tightened up
E15 Malfunction of HPS high pressure switch
H0 Failure in communication between outdoor main control and branch control
H1
Abnormal turn-off or failure in rebooting due to the high temperature of T3 in
condenser (Cooling)
H2 Abnormal turn-off or failure in rebooting due to malfunction of high pressure switch
H3 Abnormal turn-off or failure in rebooting due to high pressure in condenser (heating)
H4 Abnormal turn-off or failure in rebooting due to high temperature in modules
H5 Abnormal turn-off or failure in rebooting due to low pressure of refrigerant
H6 Abnormal turn-off or failure in rebooting due to high temperature in T5 exhaust pipe
H7
Abnormal turn-off or failure in rebooting due to abnormal refrigerant status in
compressor
H8 Failure in rebooting for T3 sensor in condenser has not been tightened up (cooling)
H12 Failure in rebooting for TP sensor in exhaust pipe has not been tightened up
P1 Protection of high pressure switch
P2 Protection of running of refrigerant in low pressure (cooling)
P3 Overflow protection of One-side over pressure / under pressure
P4 Protection of T5 exhaust pipe for high temperature
P5 Protection of T3 condensor for high temperature (cooling)
P6 Protection of IPM
P8 High temperature protection Tf of IPM
P9 Failure in DC motor and fan
P12 standby due to abnormal refrigerant status in compressor
P13 standby due to abnormal high pressure in condenser (heating)
P14 high compression ratio
P15 low compression ratio
P16 Failure in starting due to inadequate ambient temperature
L1 low electric pressure of generatrix
L2 high electric pressure of generatrix
L3 Sign of forced running
L4 Problems of MCE / synchronization / starting of compressor
L5 no speed
L7 Protection of compressor due to phase loss
L8 Compressor stalling
L9 Restriction on frequency for high pressure in condensation
LA Restriction on frequency for problems of electrical pressure
LC Restriction on frequency for inadequate temperature of condenser T3
LD Restriction on frequency for inadequate exhaust temperature of sensor T5
LE Restriction on frequency of IPM for high temperature or inadequate temperature
LF Restriction on electric frequency
d0 oil return
df Defrosting
dH Forced running
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