When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
LG ARNU423TMC2 Control Board
Most systems will not run at all unless this board is installed as it should be according to the manufacturer. The control board is constructed to control everything including the gas valve, the ignition igniter, all the various sensors as well as the air circulator all at once. Be absolutely sure while selecting a replacement due to variances between HVAC systems. The chosen circuit board must have a matching part number consistent with the brand and the model of furnace or air handler you have.
General warnings of a laboring control board
- Could be an some sort of error code instantly appearing on the board
- Power to the circuit board needs to be reset more often than not for it to work
- The whole unit refuses to initialize at all
This site contains affiliate links for which I may be compensated
Before buying or purchasing do your best and cross-check the model number and also make a visual comparison so that you are positive that the right control board is being ordered. You do not need to install the replacement part alone. Consult with a professional in your town or city to do it for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
