Gree GFH09K3FI - Page 83

80
U-Match Series DC
Inverter Service Manual
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.
16 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.
17 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.
18 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.
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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.
19 P6
Communication
malfunction between
main control and drive
Communication
between main
control board
and drive board
If the outdoor main control board does not receive data from drive
board, communication malfunction between main control and drive
will be reported. This malfunction can be eliminated automatically.
20 EE
Malfunction of
outdoor main control
memory chip
Outdoor main
control board
If the memory chip of outdoor main control 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 main control board.