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After service
Immediately stop all operations and plug out, please contact
your dealer in the following situations.
● Operation starts or stops abnormally.
● Power fuse or switch often breaks.
● Carelessly splash water or something into air conditioner.
● Electrical lines are much hot or lines cover breaks.
● Other strange situations.
● If your air conditioner has the questions of quality or anything else, please contact
the service center.
Malfunction code
Solution
P3
Note: If there're other malfunction codes, please contact qualified professionals for
service.
Means defrosting status. It’s the normal phenomenon.
E3
Compressor stalling
E7
PFC protection
E
A
Capacitor charging fault
Eb
DC line voltage drop protection
F1
Indoor ambient temp sensor short/open
F2
Outdoor ambient temp sensor short/open
F4
Outdoor mid-coil temp sensor short/open
F5
Discharge temp sensor short/open
F6
Indoor display communication between indoor and outdoor
F9
IPM protection
L1
Low voltage protection
L2
High voltage protection
L3
Demagnetization protection of compressor
L4
Compressor phase circuit detection error
P
0
Compressor phase overcurrent
P
1
High discharge temp protection
P2
Over-current protection
P4
Heating overload protection
P5
Anti-freeze protection
P6
Cooling overload protection
P9
IPM overheat protection
MUNDOCLIMA
MUVR DC inverter window type