32
Diagnosis
display
Abnormality
or
protection
control
LED 6 LED 5 LED 4 LED 3 LED 2 LED 1
Abnormality
judgement
Protection
operation
Problem Check
location
F96 Power
transistor
module
overheating
protection
O O O
4
times
happen within
30 minutes
―
Power
transistor
module overheat
PCB faulty
Outdoor air
circuit (fan motor)
F97 Compressor
overheating
protection
O O O O
3
times
happen within
30 minutes
―
Compressor
overheat
Insufficient
refrigerant
F98 Total
running
current
protection
O O
3
times
happen within
20 minutes
―
Total
current
protection
Check
refrigeration
system
Power source or
compressor lock
F99 Outdoor
direct
current (DC)
peak detection
O O O
Continuous
happen for 7
times
―
Power
transistor
module current
protection
Power transistor
module faulty or
compressor lock
LED 1 illuminate is indicated that outdoor unit is operating normally. If the LED 1 is switched off or flashing, check the
power supply and self-diagnosis indication.
------ Illuminate
O ------ Flashing
Blank ------ OFF
