Gree U-MATCH B Series, Руководство пользователя

Страница: 77 / 133

U-MATCH SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
74
No.
Error
code
Malfunction
name
Origin of
malfunction
signal
Control description
11 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.
12 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.
13 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.
14 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.
15 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.
18 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.
20 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.
21 H4
Overload
protection
Evaporator
temperature,
condenser
temperature
If outdoor unit detects that the tube temperature is higher than
protective temp. value, the unit will report overload protection. The
unit will not restart operation until tube temperature is lower than
the protective temp. value and the compressor is stopped for 3min.
If the protection occurs over 6 times, the unit cannot be recovered
automatically. Switch off the unit or re-energize the unit after
cutting off power to eliminate this protection.
23 H6
Malfunction of
outdoor fan
motor
Outdoor fan
motor
If the outdoor unit does not receive signal from outdoor fan motor
for 30s successively when the fan motor is operating, outdoor fan
motor malfunction will be reported. In this case, the unit can
automatically resume operation after stopping. If the malfunction
occurs 6 times within one hour, the unit cannot be recovered
automatically. Switch off the unit or re-energize the unit after
cutting off power to eliminate this malfunction.
32 U7
Direction
changing
malfunction of
4-way valve
4-way valve
After the compressor starts operation in heating mode, if the
outdoor unit detects the difference between evaporator
temperature and indoor ambient temperature is lower than the
protective value for 10min successively, direction changing
malfunction of 4-way valve will be reported and the outdoor unit
will stop operation. The unit can automatically resume operation in
the first two malfunctions. If the malfunction occurs 3 times, the
unit cannot be recovered automatically. Switch off the unit or
re-energize the unit after cutting off power to eliminate this
malfunction.