mundoclima 2022 Manuel page 66

SERIES: MULTISPLIT - H3M MULTISPLIT - H3M
UNITS: MUEX-14-H3.2 / MUEX-18-H3.2
MUEX-24-H3.3 / MUEX-28-H3.4
Code
U8 Zero cross detection circuit malfunction
C5 Malfunction protection of jumper cap
H6 Feedback of without IDU motor
F1 Indoor ambient temperature sensor is open/short circuited
F2 Indoor evaporator temperature sensor is open/short circuited
b5 Liquid valve temperature sensor is open/short circuited
b7 Gas valve temperature sensor is open/short circuited
P7 Modular temperature sensor is open/short circuited
F4 Outdoor ambient temperature sensor is open/short circuited
A5 Outdoor condenser inlet pipe temperature sensor is open/short circuited (commercial)
F4 Outdoor condenser middle pipe temperature sensor is open/short circuited
A7 Outdoor condenser outlet pipe temperature sensor is open/short circuited (commercial)
F5 Outdoor discharge pipe temperature sensor is open/short circuited
E6 Communication malfunction
U1 Malfunction of phase current detection circuit for compressor
HE Compressor demagnetization protection
U3 Malfunction of voltage dropping dor DC bus - bar
P8 Module high temperature protection
F0 Refrigerant lacking or blockage protection of systen (not avalaible for residential ODU)
PU Charging malfunction of capacitor
E1 High pressure protection of system
E3 Low pressure protection of system (reserved)
H3 Compressor overload protection
LP Indoor unit and outdoor unit do not match
EE Malfunction of memory chip
dn Wrong connection of communication wire or malfunction of electronic expansion valve
U5 Malfunction of complete units current detection
L3 Malfunction protection of outdoor fan 1
Detection status of wrong connection of communication wire
dd
or malfunction of electronic expansion valve
E7 Mode conflict
Fo Refrigerant recycling mode
AL X-fan
H1 Defrosting or oil return in heating mode
Lc Start failure of compressor
E4 High discharge temperature protection of compressor
E8 Overload protection
E5 Whole unit overcurrent protection
P5 Compressor phase current protection
H7 Compressor desynchronizing
Ld Compressor phase-lacking / phase-inverse protection
H5 IPM modular protection
PL DC bus - bar low voltage protection
PH DC bus - bar high voltage protection
HC PFC protection
U7 The for-way valve is abnormal
(CL20810-838)
(CL20814 / CL20810)
(CL20811 / CL20812)
Description
66
TROUBLESHOOTING
Error Type
Outdoor hardware
Outdoor hardware
Indoor hardware
Indoor hardware
Indoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
System Error
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
System Error
Outdoor hardware
System Error
System Error
Outdoor hardware
System Error
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
System Error
Special Mode
Special Mode
Outdoor hardware
System Error
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
Outdoor hardware
EN
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