95
15.3 Error Code 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
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
H25 Indoor ion device abnormality
Port is ON for 10s
during ion device off
— —
ion device PCB
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
abnormality
Continuous for 5s —
Outdoor heat exchanger
temperature sensor open
or short circuit
Outdoor heat exchanger
temperature sensor 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
H38
Indoor/Outdoor mismatch
(brand code)
— — Brand code not match
Check indoor unit and
outdoor unit
H59 ECO sensor abnormality Continuous for 70s —
ECO sensor open or short
circuit
ECO sensor
ECO and Indoor PCB
H70 Light sensor abnormality
Continuous for
24 hours
—
Light sensor open or short
circuit
Light sensor
Indoor PCB
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
System and compressor
microcomputer
communication error (for
S10*** only)
2 occurrences
within 5 seconds
— —
Compressor
Outdoor PCB
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