60
Technical Information
No.
Error code
Malfunction
name
Origin of
malfunction signal
Control description
7
E9
Full water
protection
Water level switch
If cut-off of water level switch is detected for 8s suc-
cessively 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.
8
F0
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.
9
F1
Malfunction of
evaporator
temperature
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
disappears. 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
condenser
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
disappears. 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 disappears. 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
discharge
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
disappears.
13
F5
Malfunction
wired controller
temperature
sensor
Wired controller
If the wired controller detects open circuit or short circuit of
its temperature sensor for 5s successively, wired controller
temperature sensor malfunction will be reported.
14
ee
Malfunction of
outdoor 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
overload
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 overload 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.
Summary of Contents for AC Pro C Series
Page 90: ...Technical Information...
