E1 – REFRIGERANT SYSTEM HIGH-PRESSURE PROTECTION
E2 – ANTIFREEZE 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 ON THE INDOOR FAN MOTOR
C5– JUMPER CAP MALFUNCTION 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 DETECTS 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 OVERLOAD 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– IMPRESSIVE PRODUCTION AGAINST LOSS OF PHASE
U1– COMPRESSOR PHASE CURRENT DETECTION CIRCUIT MALFUNCTION
HE– COMPRESSOR DEMAGNETIZATION PROTECTION
EE– LOADING EEPROM MALFUNCTION
P6– COMMUNICATION FAILURE BETWEEN THE MAIN BOARD AND DRIVE 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 DETECTOR CIRCUIT MALFUNCTION OR CURRENT SENSOR MALFUNCTION
Ld– COMPRESSOR LOOSE OFF PHASE PROTECTION
LE– COMPRESSOR LOCKED ROTARY PROTECTION
EU– IPM OVER-TEMPERATURE LIMIT OR DROP FREQUENCY
U7– 4-WAY VALVE REVERSE 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