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Lennox G43UF Control Board
The control board is created to regulate everything including the gas valve, the igniter, all the various sensors as well as the blower all together. HVAC systems will not operate whatsoever without the control board configured and seated properly. The correct control board will need to pair with the part number from both the make and model of HVAC system. Be absolutely sure upon picking a replacement board due to the vast differences in brand and air handler types.
Simple warnings that your main board is failing?
- The control board has to be turned off and back on frequently for it to kick in
- System has some sort of error code shown directly on the circuit board
- Entire unit cannot initialize properly
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If you decide on picking up or ordering a new Lennox G43UF replacement part, do your due diligence and cross-check the model number and also make a visual inspection so that you are positive that the correct control board is being ordered. Once you have the part to install the part by yourself. Search for a pro in your community to hire and install the part for you.
Feel free to download your manual for help.
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