69
15.3 Error Codes Table
Diagnosis
display
Abnormality /
Protection control
Abnormality
Judgment
Protection
Operation
Problem Check location
H00 No memory of failure — Normal operation — —
H11
Indoor/outdoor
abnormal
communication
After operation for
1 minute
Indoor fan only
operation can
start by entering
into force cooling
operation
Indoor/outdoor
communication not
establish
Indoor/outdoor wire terminal
Indoor/outdoor PCB
Indoor/outdoor connection wire
H12
Indoor unit capacity
unmatched
90s after power
supply
—
Total indoor capability
more than maximum limit
or less than minimum limit,
or number of indoor unit
less than two
Indoor/outdoor connection wire
Indoor/outdoor PCB
Specification and combination
table in catalogue
H14
Indoor intake air
temperature sensor
abnormality
Continuous for 5s —
Indoor intake air
temperature sensor open
or short circuit
Indoor intake air temperature
sensor lead wire and connector
H15
Compressor
temperature sensor
abnormality
Continuous for 5s —
Compressor temperature
sensor open or short circuit
Compressor temperature
sensor lead wire and connector
H16
Outdoor current
transformer (CT)
abnormality
— —
Current transformer faulty
or compressor faulty
Outdoor PCB faulty or
compressor faulty
H19
Indoor fan motor
mechanism lock
Continuous
happen for 7 times
—
Indoor fan motor lock or
feedback abnormal
Fan motor lead wire and
connector
Fan motor lock or block
H21
Indoor float switch
operation abnormal
— — — —
H23
Indoor heat
exchanger
temperature sensor
abnormality
Continuous for 5s —
Indoor heat exchanger
temperature sensor open
or short circuit
Indoor heat exchanger
temperature sensor lead wire
and connector
H24
Indoor heat
exchanger
temperature sensor
2 abnormality
Continuous for 5s —
Indoor heat exchanger
temperature sensor 2 open
or short circuit
Indoor heat exchanger
temperature sensor 2 lead wire
and connector
H27
Outdoor air
temperature sensor
abnormality
Continuous for 5s —
Outdoor air temperature
sensor open or short circuit
Outdoor air temperature sensor
lead wire and connector
H28
Outdoor heat
exchanger
temperature sensor
1 abnormality
Continuous for 5s —
Outdoor heat exchanger
temperature sensor 1 open
or short circuit
Outdoor heat exchanger
temperature sensor 1 lead wire
and connector
H30
Outdoor discharge
pipe temperature
sensor abnormality
Continuous for 5s —
Outdoor discharge pipe
temperature sensor open
or short circuit
Outdoor discharge pipe
temperature sensor lead wire
and connector
H33
Indoor / outdoor
misconnection
abnormality
— —
Indoor and outdoor rated
voltage different
Indoor and outdoor units check
H35
Indoor drain water
adverse current
abnormal
— — — —
H38
Indoor/Outdoor
mismatch (brand
code)
— — Brand code not match
Check indoor unit and outdoor
unit
H97
Outdoor fan motor
mechanism lock
2 times happen
within 30 minutes
—
Outdoor fan motor lock or
feedback abnormal
Outdoor fan motor lead wire
and connector
Fan motor lock or block
H98
Indoor high pressure
protection
— —
Indoor high pressure
protection (Heating)
Check indoor heat exchanger
Air filter dirty
Air circulation short circuit
H99
Indoor operating unit
freeze protection
— —
Indoor freeze protection
(Cooling)
Check indoor heat exchanger
Air filter dirty
Air circulation short circuit
F11
4-way valve
switching
abnormality
4 times happen
within 30 minutes
—
4-way valve switching
abnormal
4-way valve
Lead wire and connector
F90
Power factor
correction
(PFC) circuit
protection
4 times happen
within 10 minutes
—
Power factor correction
circuit abnormal
Outdoor PCB faulty
F91
Refrigeration cycle
abnormality
2 times happen
within 20 minutes
—
Refrigeration cycle
abnormal
Insufficient refrigerant or valve
close
F93
Compressor
abnormal revolution
4 times happen
within 20 minutes
—
Compressor abnormal
revolution
Power transistor module faulty
or compressor lock
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