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code
malfunction
1
Storage slug
2
Indoor
PCB
malfunction
3
Anti-freezing
protection
4
Overload
of
system
5
No
motor
of
indoor
unit
feedback
6
Indoor
pipe
temperature
sensor
malfunction
7
Internal ambient
temperature
sensor
malfunction
8
Zero
passage
abnormal
9
Overload
of
compressor
10
Startup failure
11
No
motor
of
outdoor
unit
feedback
12
Overcurrent
protection
13
4-way
valve
conversion
abnormal
14
Phase
current
detection
malfunction
of
compressor
remar
4min after protection stop of compressor, the malfunction is shown in error code. In other situation, the malfunction will be displayed by press the light button for 6 times within 4s.
ks
58
Error display
Repair method
Dual
8
LED
display
EE
Heating
Replace indoor
LED-pause 3s
main board
and blink 15
times
EE
Heating
Replace indoor
LED-pause 3s
main board
and blink 15
times
E2
Running LED-
Outdoor
pause 3s and
ambient
blink 2 times
temperature is
too low
H4
Heating
System
LED-pause 3s
abnormal,
and blink
4
check
if
the
times
evaporator and
condenser
dirty
and
blocked
H6
Running LED-
Is electromotor
pause 3s and
mounted
blink 11 times
normally?
F2
cooling LED-
Is
it
loose?
pause 3s and
Measure
the
blink 2 times
resistance
value
with
universal meter
F1
Cooling LED-
Is
it
loose?
pause 3s and
Measure
the
blink 1 times
resistance
value
with
universal meter
UF
Heating
and
Replace indoor
cooling
LED
main board
blinks 7 times
at the same
time
H3
heating LED-
Inspect
pause 3s and
connection
blink 3 times
state
of
the
overload wire.
Lc
heating LED-
Check
if
the
pause 3s and
resistance
blink 11 times
compressor
and resistance
to
ground
normal. If the
compressor
normal,
the
outdoor
main
boar d may be
wrong.
UH
Heating
and
This
cooling
LED
malfunction
blink 8 times
may
happen
at the same
when
outdoor
time
DC
electromotor is
used.
E5
Running LED-
Is
electric
pause 3s and
network
blink 5 times
variable?
U7
cooling LED-
Replace 4-way
pause 3s and
valve.
blink 20 times
U1
Heating LED-
Replace
pause 3s and
outdoor
main
blink 13 times
board.
code
malfunction
Error display
Dual
display
15
Sync failure
H7
16
Current
diction
U5
malfunction
of
complete unit
17
Outdoor
ambient
F3
temperature sensor
malfunction
is
18
Discharge
E4
protection
of
compressor
is
19
Break-circuit
and
F5
short-circuit
of
outdoor
discharge
temperature sensor
20
Break-circuit
and
F4
short-circuit
of
outdoor condenser
temperature sensor
21
Overheat of carbon
P8
fin
22
DC overcurrent
UU
23
Temperature
P7
sensor malfunction
of carbon fin
24
Lack of Freon or
F0
of
block protection
is
is
25
DC input voltage is
PH
too high
26
DC input voltage is
PL
too low
27
Communication
E6
malfunction
28
Setting error, indoor
UA
and
outdoor
unit
abnormal
Repair method
8
LED
Heating
Check if the resistance of compressor and
LED-pause 3s
resistance to ground is normal. If the
and blink
7
compressor is normal, the outdoor main
times
boar d may be wrong.
Cooling
Replace outdoor main board
LED-pause 3s
and blink 13
times
Cooling
Is it loose? Measure the resistance value
LED-pause 3s
with universal meter
and blink
3
times
Running
Is it loose? Measure the resistance value
LED-pause 3s
with universal meter
and blink
4
times
cooling LED-
Is it loose? Measure the resistance value
pause 3s and
with universal meter
blink 5 times
cooling LED-
Is it loose? Measure the resistance value
pause 3s and
with universal meter
blink 18 times
heating LED-
Is outdoor ambient temperature is too
pause 3s and
high? Is radiator mounted correctly?
blink 19 times
Heating
and
cooling
LED
blink 11 times
at the same
time
heating LED-
Replace outdoor main board.
pause 3s and
blink 18 times
cooling LED-
pause 3s and
blink 10 times
cooling LED-
Is voltage of AC power supply normal?
pause 3s and
blink 11 times
Heating LED-
Is voltage of AC power supply normal?
pause 3s and
blink 21 times
Running LED-
Is
outdoor
connecting
pause 3s and
connected?
blink 6 times
Outdoor unit is not matched with indoor
Heating
and
cooling
LED
unit.
blink 12 times
at the same
time
Troubleshooting
wire
reliably
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