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LSZ244-vm6 LG Split system comms fault

dahbrown

By dahbrown
in DIY Appliance Repair Help

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dahbrown

dahbrown

Posted
Posted

Hi,

 

I have the above split system LG. When I turn the unit on, it powers up for 5 minutes. Then shuts down with a "CH5" error code.

 

I have replaced the indoor and outdoor circuit boards without any luck.

 

Thanks

 

Dave

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telefunkenu47 Kohai

telefunkenu47

Posted
Posted

so what is the ch 5 code telling us? any idea? Im a fujitsu guy.(sorry!)

telefunkenu47 Kohai

telefunkenu47

Posted
Posted

Looks like a communication error between indoor and outdoor units. since you have already replaced both boards it would then go to the wiring. make sre the wires are correctly connected, ohm out the 3 wires as well as check the ground. resistance should be about the same all 3 wires.Double check that you wired the board correctly. never hurts to check the voltage to the main power supply board also Look for the stupid things first,OCCAM  

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