19
30
Module high
temperature
protection
P8
Blinks 19
times
During cooling
operation,
compressor will stop
while indoor fan will
operate;
During heating
operation, the
complete unit will
stop
After the complete
unit is deenergized for
20mins, check
whether the thermal
grease on IPM
Module of outdoor
control panel AP1 is
sufficient and whether
the radiator is inserted
tightly. If it’s no use,
please replace control
panel AP1.
31
Decrease
frequency due
to high temp.
resistant during
heating
operation
H0
Blinks 10
times
All loads operate
normally, while
operation frequency
for compressor is
decreased
Refer to the
malfunction analysis
(overload, high
temperature resistant)
32
Static dedusting
protection
H2
Blinks
twice
33
Overload
protection for
compressor
H3
Blinks 3
times
Blinks 8
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the
complete unit will
stop operation.
1. Wiring terminal
OVC-COMP is
loosened. In normal
state, the resistance
for this terminal should
be less than 1ohm.
2. Refer to the
malfunction analysis
(discharge protection,
overload)
34
System is
abnormal
H4
Blinks 4
times
Blinks 6
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the
complete unit will
stop operation.
Refer to the
malfunction analysis
(overload, high
temperature resistant)
35 IPM protection H5
Blinks 5
times
Blinks 4
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the
complete unit will
stop operation
Refer to the
malfunction analysis
(IPM protection, loss
of synchronism
protection and
overcurrent protection
of phase current for
compressor.
36
Module temp.
is too high
H5
Blinks 5
times
Blinks 10
times
37
Internal motor
(fan motor) do
not operate
H6
Blinks 11
times
Internal fan motor,
external fan motor,
compressor and
electric heater stop
operation, guide
louver stops at
present location.
1. Bad contact of DC
motor feedback
terminal.
2. Bad contact of DC
motor control end.
3. Fan motor is
stalling.
4. Motor malfunction.
5. Malfunction of
mainboard rev
detecting circuit.
38
Desynchronizing
of compressor
H7
Blinks 7
times
During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
During heating
operation, the complet
unit will stop operation.
Refer to the
malfunction analysis
(IPM protection, loss
of synchronism
protection and
overcurrent protection
of phase current for
compressor.
39 PFC protection HC
Blinks 6
times
Blinks 14
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the unit
will stop operation
Refer to the
malfunction analysis.
40
Outdoor DC
fan motor
malfunction
L3
Blinks 23
times
Blinks
14 times
Outdoor DC fan
motor malfunction
lead to compressor
stop operation,
DC fan motor
malfunction or system
blocked or the
connector loosed
41
Power
protection
L9
Blinks 20
times
Blinks 9
times
compressor stop
operation and outdoor
fan motor will stop 30s
latter, 3 minutes latter
fan motor and
compressor will restart
To protect the
electronical
components when
detect high power
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