McQuay M5MSY30BR User Manual

79
Troubleshooting M5MSY-2010
Error Codes
ERROR
CODE
ERROR DESCRIPTION
00 NORMAL
A1
INDOOR PCB ERROR
A3
DRAIN PUMP ABNORMAL
A5
ANTIFREEZE (COOLING)/HEAT EXCHANGER OVERHEAT (HEATING)
A6
INDOOR FAN MOTOR ABNORMAL
AH
ELECTRICAL AIR CLEANER ABNORMAL
C4
INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT/OPEN
C5
INDOOR HEAT EXCHANGER (2) THERMISTOR SHORT/OPEN
C7
LOUVER LIMIT SWITCH ERROR
C9
INDOOR ROOM THERMISTOR SHORT/OPEN
E1
OUTDOOR PCB ERROR
E3
HIGH PRESSURE PROTECTION
E4
LOW PRESSURE PROTECTION
E5
COMPRESSOR MOTOR LOCK/COMPRESSOR OVERLOADED
E6
COMPRESSOR START-UP ERROR
E7
OUTDOOR DC FAN MOTOR LOCK
E8
AC INPUT OVER CURRENT
E9
EXV ERROR
EA
4 WAY VALVE ERROR
F3
DISCHARGE PIPE OVERHEAT
F6
HEAT EXCHANGER OVERHEAT
HO
COMPRESSOR SENSOR SYSTEM ERROR
H3
HIGH PRESSURE SWITCH ERROR
H6
COMPRESSOR FEEDBACK DETECTION ERROR
H7
FAN MOTOR OVERLOADED/OVERCURRENT/SENSOR ABNORMAL
H8
AC CURRENT SENSOR ERROR
H9
OUTDOOR AIR THERMISTOR SHORT/OPEN
J1
PRESSURE SENSOR ERROR
J3
COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT/OPEN/MISPLACED
J5
SUCTION PIPE THERMISTOR SHORT/OPEN
J6
OUTDOOR HEAT EXCHANGER THERMISTOR SHORT/OPEN
J7
SUBCOOLING HEAT EXCHANGER THERMISTOR SHORT/OPEN
J8
LIQUID PIPE THERMISTOR SHORT/OPEN
J9
GAS PIPE THERMISTOR SHORT/OPEN
L1
INVERTER OUTDOOR PCB ERROR
L3
OUTDOOR CONTROL BOX OVERHEAT
L4
HEAT SINK OVERHEAT
L5
IPM ERROR/IGBT ERROR
L8
INVERTER COMPRESSOR OVERCURRENT
L9
COMPRESSOR OVERCURRENT PREVENTION

McQuay M5MSY30BR Specifications

General

Brand	McQuay
Model	M5MSY30BR
Category	Air Conditioner
Language	English