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13. Servicing Mode
13.1 Auto Off/On Button
Auto OFF/ON
Button Pressed
Auto OFF/ON
Button Pressed
5 sec
Auto Operation Test Run Operation
(Forced Cooling Operation)
Stop
1 AUTO OPERATION MODE
The Auto Operation will be activated immediately once the Auto OFF/ON button is pressed. This operation
can be used to operate air conditioner with limited function if remote control is misplaced or malfunction.
2 TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)
The Test Run Operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5
seconds. A “beep” sound will be heard at the fifth seconds, in order to identify the starting of this operation.
The Auto OFF/ON button may be used together with remote control to set / change the advance setting of air
conditioner operation.
3 REMOTE CONTROL NUMBER SWITCH MODE
The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed
continuously for more than 11 seconds (3 “beep” sounds will occur at 11
th
seconds to identify the Remote
Control Number Switch Mode is in standby condition), press “AC Reset” button and then press any button at
remote control to transmit and store the desired transmission code to the EEPROM.
There are 4 types of remote control transmission code could be selected. The indoor unit will only operate
when received signal with same transmission code from remote control. This could prevent signal
interference when there are 2 or more units installed nearby together.
To change remote control transmission code, short or open jumpers at the remote control printed circuit
board.
Remote Control Printed Circuit Board
Jumper A (J-A) Jumper B (J-B) Remote Control No.
Short Open A (Default)
Open Open B
Short Short C
Open Short D
4 REMOTE CONTROL RECEIVING SOUND OFF/ON MODE
The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed
continuously for more than 16 seconds (4 “beep” sounds will occur at 16
th
seconds to identify the Remote
Control Receiving Sound OFF/ON Mode is in standby condition) and press “AC Reset” button and then press
“Check” button at remote control.
Press Auto OFF/ON button to toggle remote control receiving sound.
- Short “beep”: Turn ON remote control receiving sound.
- Long “beep”: Turn OFF remote control receiving sound.
After Auto OFF/ON button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON
Mode is restarted.