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LG ARNU363TNC2 Control Board
The LG ARNU363TNC2 control board is made to oversee everything including the gas valve, the igniter, most sensors as well as the air circulator all at once. HVAC systems will not activate lest the circuit board is in connected and operational. You must do some research upon picking a replacement board due to so many small differences in certain brands. The control board picked must have a matching part number consistent with the brand and the model of the unit in question.
Major indications of a deteriorating main board
- Power to the control board has to be turned off and back on a lot for it to work
- There is flashing code suddenly appearing on the circuit board
- Your system is not able to start period
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Before buying or purchasing, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the right control board is the one being purchased. You do not have to install the part by yourself. Look for a professional in your area to do it for you.
Feel free to download your manual for help.
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