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Technical Information
Service Manual
3.7 Setting button function
a) ON/OFF button: It controls systems switch.
b) Mode button: Mode setting cycle with below sequence: Cooling only unit: cooling-> dry-> fan.
^V#¸ & # $ #
o
C or
o
F per press
V#¸ ´ $ $
o
C or 61
o
F. The button is not valid under auto, dry and fan mode.
^V#¹ & # $ #
o
C or
o
F per press
V#¹ ´ $ $ {J
o
C or 86
o
F. The button is not valid under auto, dry and fan mode.
3.8 Light Control
If set the light is on with remote control, the indicator lamp and dual-8 display the current setting status; if set the
light is off with remote control, turn off the lamp immediately. If there is front panel button or remote control button
operation when setting light off with remote control, the indicator lamp and dual-8 display current setting status,
and turn off the light 5S later. Remote control light button does not controlled by failure display.
3.9 Protection Function
'Q [\
When the anti-freeze protection is inspected, the compressor stops, fan motor runs with setting fan speed.
When the anti-freeze protection is canceled and reaches to the 3min time-delay, it runs with the original status.
Temperature sensor failure inspection
a) Environment temperature sensor is open, short circuit: dual-8 displays F1, the cooling indicator lamp goes out 3S and blinks 1
time, and it will light up 0.5S and go out 0.5S when it is blinking.
b) Indoor pipe temperature sensor is open, short circuit: dual-8 displays F2, the cooling indicator lamp goes out 3S and blinks 2
times, and it will light up 0.5S and go out 0.5S when it is blinking.
c) Outdoor pipe temperature sensor is open, short circuit: dual-8 displays F4, the cooling indicator lamp goes out 3S and blinks 4
times, and it will light up 0.5S and go out 0.5S when it is blinking.
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