Pump Down - LG CT09F Service Manual

2. Pump Down

Setting Procedure
1) Set the DIP Switch as follow after shutting the power source down.
5
UUB1, UUC1
2) Reset the power.
3) Red LED and Green LED of PCB lights during work.
(The indoor unit is operated by force.)
4) If operation is done, Red LED will be turned off.
If operation is not done normally, Red LED will blink.
5) Close the Liquid valve only after green LED turned off (7 minutes from the start of the machine).
Then close the gas valve after Green LED on.
1 2 3 4 5 6
UUD1, UUD3
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Part 4 Trouble Shooting
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