Gree GKH18K3HI - Page 74

U-Match Series Service Manual
71
No.
Error
code
Malfunction
name
Origin of
malfunction
signal
Control description
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.
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.