H00 Normal
H11
Indoor/Outdoor abnormal
communication
>1 minute after starting
operation
Connecting cable,
Indoor/outdoor PCB
○
H14
Indoor intake air temp sensor
abnormality
-
Intake air temperature
sensor(defected or
disconnected)
×
H15
Outdoor compressor
tempearture sensor abnormality
Continue for 5 sec.
Compressor tempeature
sensor(defected or
disconnected)
×
H16
Outdoor Current Transformer
open circuit
- Outdoor PCB, IPM module ×
H19
Indoor fan motor mechanism
lock
- Indoor PCB, fan motor ×
H23
Indoor heat exchanger
temperature A sensor
abnormality
Continue for 5 sec.
Heat exchanger
temperature
sensor(defected or
disconnected)
○
H27
Outdoor air temperature sensor
abnormality
Continue for 5 sec.
Outdoor temperature
sensor(defected or
disconnected)
○
H28
Outdoor heat exchanger
temperature sensor abnormality
Continue for 5 sec.
Outdoor heat exchanger
sensor(defected
disconnected)
○
H30
Discharge temperature sensor
abnormality
Continue for 5 sec.
Discharge temperature
sensor(defected or
disconnected)
×
H33
Incorrect connection of
Indoor/Outdoor cable
-
Indoor/outdoor supply
voltage
×
H97 Outdoor fan motor lock Twice within 30 minutes Outdoor fan motor ×
H98 Indoor high pressure protection -
Air filter dirty
Air circulation short circuit
-
H99
Indoor heat exchanger anti-
freezing protection
Indoor heat exchanger
freezing
Insufficient refrigerant
Air filter dirty
-
F11
Cooling/Heating cycle
changeover abnormality
4 times occurrence
within 30 minutes
4-way valve
V-coil
×
F90 PFC control
4 times occurrence
within 20 minutes
Voltage at PFC ×
F91 Refrigeration cycle abnormality
2 times occurrence
within 20 minutes
No refrigerant(3-way valve is
closed)
×
F93 Compressor abnormality
4 times occurrence
within 20 minutes
Compressor ×
F95 Cool high pressure protection
4 times occurrence
within 20 minutes
Outdoor refrigeration cycle ×
F96 IPM overheating protection -
Excessive refrigerant
Improper heat radiation
IPM
×
F97
Outdoor compressor
overheating protection
4 times occurrence
within 20 minutes
Insufficient refrigerant
Compressor
×
F98 Total running current protection
3 times occurrence
within 20 minutes
Excess refrigerant
Improper radiation
×
F99
Outdoor Peak Current
Protection Control
4 times occurrcnce
continuously within 30
minutes
Outdoor PCB
IPM
Compressor
×