Gree GWH09UB-K6DNA4A Service Manual page 34

Service Manual
of swing blade, there are upper swing and lower swing.
When selecting fixed-angle swing, you can select 5 kinds of swing position for blowing fan;
After selecting free swing, lower swing for heating mode and upper swing for cooling mode.
Horizontal louver postion diagrammatic sketch
Initial stauts after reset is finished Lower swing
Upper swing
(12)Display
① Display of operation icon and mode icon
After energization, all icon will be displayed for once. Under standby status, operation icon will be in white. After turning on the unit
with remote controller, the icon for the current operation mode will be displayed (mode: cooling, heating, 0.5, defrosting, frequency
visual). After pressing light button to turn off light, all displays will be turned off. When turning on the unit, the backlight indicator will
be turned on; when turning off the unit or light button, backlight indicator wont be turned on.
② Dual-8 nixie tube display
When turning on the unit after energization for the first time, the nixie tube is defaulted to display current set temperature (the
temperature setting range is16~30°C). When it received the signal of display set temperature, the nixie tube displays set
temperature; when it received the signal of display ambient temperature, the nixie tube will display current indoor ambient
temperature; if remote control to set other status, the display wont change. F1 will be displayed for the malfunction of ambient
temperature sensor; F2 will be displayed for the malfunction of indoor tube temperature sensor; C5 will be displayed for the
malfunction of jumper cap.
(13)Locked protection to motor
After turning on the fan, when the motor operates at low speed for a period of time, it will stop operation for preventing auto
protection of motor and lockage will be displayed. If its at on status, dual-8 nixie tube displays lockage error code H6; if its at off
status, lockage information wont be displayed.
6.Special Functions
(1)Rf control function
There are three optional mode—air, humidify and air purifier. After matching is succeeded, you can control the related mode through
remote controller.
(2)I Feel function
When I FEEL command is received, the controller will operate according to the ambient temperature sent by the remote controller
(For defrosting and cold blow prevention, the unit operates according to the ambient temperature sensed by the air conditioner).
The remote controller will regularly send ambient temperature data to the controller. When the data has not been received for a long
time, the unit will operate according to the temperature sensed by the air conditioner. If I FEEL function is not selected, the ambient
temperature will be that sensed by the air conditioner. I FEEL function is not to be memorized.
(3)Malfunction detecting of temperature sensor
When it detected that theres malfunction of indoor ambient temperature sensor, it will display F1; when it detected that theres
malfunction of indoor tube temperature sensor, it will display F2.
(4)Low power consumption standby function
When the air conditioner is in power off and at standby status, it will enter into low power consumption standby status 6 minutes
later, and the operation indicator will be turned off.
7.Error Analysis
(1)Error 1: No response after energization, and buzzer does not give out a beep.
Solution: Please check the power supply or replace the controller.
(2)Error 2: Dual-8 nixie tube of display board displays "C5".
Solution: The jumper cap has not been firmly connected to the controller, please reinsert or replace the jumper cap with the same
specification.
(3)Error 3: Dual-8 nixie tube of display board displays "F1".
Solution: The ambient temperature sensor of air conditioner has not been firmly connected to the controller, please reinsert or
replace an ambient temperature sensor.
(4)Error 4: Dual-8 nixie tube of display board displays "F2".
Solution: The tube temperature sensor of air conditioner has not been firmly connected to the controller, please reinsert or replace a
tube temperature sensor.
Technical Information
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