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Ihave a l.g. lsu242he unit that is not working. The diagnostic light is fluttering and not giveing any code. Board has been replaced to no avail. Replaced board on inside unit. no change. condensor fan runs evan if inside unit is turned off. This unit ran perfect for aboutone month


Answers :

Sounds like some of the low voltage wiring has shorted out. This will make the light flutter like that and will make the condenser fan motor run as well. If you replaced the boards and are getting the same issue, then the only thing is can be is a low voltage short.

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