innovair PIN413C2V31 Service Manual page 34

PIN519C2V31-O

LED2
LED1
(red)
standby
LED2 slow flashing(0.2Hz)
LED1 on
The picture of PCB above is only for reference.
LED 1 is a red light and for the PCB POWER display.
LED 2 is a yellow light. After power on, it will be slow flash(0.2Hz) when the unit is in standby and quick
flash (2.5Hz) if the unit has some problems.
LED 4(green) and LED3 (red) are two lights controlled by the compressor drive chip. Below are
meanings for those lights.
LED3
(red)
(yellow)
operating
on
on
& LED4
(green)
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