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Service manual
8 Electronic control function
8.1 Electric Control working environment.
8.1.1 Input voltage: 175~253V.
8.1.2 Input power frequency:50Hz.
8.1.3 Indoor fan normal working amp. is less than 1A.
8.1.4 Outdoor fan. Normal working amp. is less than 1.5A.
8.1.5 Four-way valve normal working amp. is less than 1A.
8.1.6 Swing motor: DC12V.
8.2 Indoor unit’s display board
1
22
3
4
5
6
Infrared Signal
Receiver
8.2.1 AUTO indicator
This indicator illuminates when the air conditioner is in AUTO operation.
8.2.2 TIMER indicator
This indicator illuminates when TIMER is set ON/OFF.
8.2
.
3 PRE.-DEF. Indicator (For Cooling & Heating models only)
This indicator illuminates when the air conditioner starts defrosting automatically or
when the warm air control feature is activated in heating mode.
8.2.4 TEMPERATURE indicator
a) Usually it displays the temperature settings. When change the setting temperature,
this indicator begins to flash, and stops 20 seconds later.
b) It displays the room temperature when the air conditioner is in FAN only operation.
c) When the unit stops operation, it returns to original factory settings.
d) Displays the malfunction code or protection code.
8.2.5 OPERATION indicator
This indicator flashes after power is on and illuminates when the unit is in operation.
8.2.6 SLEEP indicator
This indicator appears when the unit is in Energy-saving operation.
8.3 Digital display in outdoor PCB
There is a digital display tube in outdoor PCB.
8.3.1 Digital display tube display function
x
In standby , The LED displays “
ˉˉ
”,
x
In compressor operation, the LED display the frequency,
x
In defrosting mode, The LED displays “dF”
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