Question about LG Heating & Cooling
check all wiring and connections - ch 5 is a communication error between the indoor unit and the outdoor unit......
Posted on Jun 04, 2009
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Posted on Jan 02, 2017
CH-05-Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
Posted on Jan 01, 2011
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