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Installation Instructions
There are LED indicators on the main board of the indoor unit, which are used to display the operating status and malfunction
information of the unit.
LED Indicator
Color
Power Indicator
Red
Running Indicator
Green
Different running indicator flashing light means different system failure.
Malfunction
Indoor Jumper cap failure
Indoor fan failure
Indoor tube temperature sensor failure Light out 3S then flash four times
31-5000710 Rev. 3
Function
Indoor unit main board is powered on, Power Indicator is on.
After detecting the indoor fan turn-on signal, the running indicator light is on, when
detecting the indoor fan turning-off signal, the running indicator light is off. When
detecting a system failure, the running indicator light flashes.
Running Indicator Status
Light out 3S then flash once
Light out 3S than flash twice
Remark
Flash means light on 0.5S then out
0.5S
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