ƳƵ
No.
Error
Code
Malfunction Name
Origin of
malfunction signal
Control Description
7E9
Full water
protection
Water level switch
If cut-off of water level switch is detected for 8s successively
once energized, the system will enter full water protection. In
this case, switch off the unit and then switch it on to eliminate
this malfunction.
8F0
Malfunction of
indoor ambient
temperature sensor
at air return port
Indoor ambient
temperature sensor
If the indoor ambient temperature sensor is detected of open
circuit or short circuit for 5s successively, indoor ambient
temperature sensor malfunction will be reported. The unit
can automatically resume operation after the malfunction
disappears. If indoor ambient temperature sensor malfunction
occurs in fan mode, only the error code is displayed and the
indoor unit can work normally.
9F1
Malfunction of
evaporator tem-
perature sensor
Evaporator
temperature sensor
If the indoor evaporator temperature sensor is detected of
open circuit or short circuit for 5s successively, evaporator
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disap-
pears. If evaporator temperature sensor malfunction occurs in
fan mode, only the error code is displayed and the indoor unit
can work normally.
10 F2
Malfunction of con-
denser temperature
sensor
Condenser
temperature sensor
If the outdoor condenser temperature sensor is detected of
open circuit or short circuit for 5s successively, condenser
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disap-
pears. If condenser temperature sensor malfunction occurs in
fan mode, only the error code is displayed and the indoor unit
can work normally.
11 F3
Malfunction of
outdoor ambient
temperature sensor
Outdoor ambient
temperature sensor
If the outdoor ambient temperature sensor is detected of open
circuit or short circuit for 5s successively, outdoor ambient
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disap-
pears. If outdoor ambient temperature sensor malfunction
occurs in fan mode, only the error code is displayed and the
indoor unit can work normally.
12 F4
Malfunction of dis-
charge temperature
sensor
Discharge
temperature sensor
If the outdoor discharge temperature sensor is detected
of open circuit or short circuit for 5s successively after the
compressor has been operating for 3min, outdoor discharge
temperature sensor malfunction will be reported. The unit can
automatically resume operation after the malfunction disap-
pears.
13 F5
Malfunction wired
controller tempera-
ture sensor
Wired controller
If the wired controller detects open circuit or short circuit of its
temperature sensor for 5s successively, wired controller tem-
perature sensor malfunction will be reported.
14 ee
Malfunction of out-
door drive memory
chip
Outdoor drive board
If the memory chip of outdoor drive board is broken, the unit
cannot be started. The unit cannot be recovered automatically.
If the malfunction cannot be eliminated after switching off
the unit and then energizing the unit for several times, please
replace the outdoor drive board.
15 H3
Compressor over-
load protection
Compressor overload
switch
If it is detected within 3s successively that the overload switch
is cut off under ON or standby state, the unit will report over-
load protection. If the fault occurs successively 3 times, the
unit cannot be recovered automatically. Switch off the unit or
re-energize the unit after cutting off power to eliminate this
protection.
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