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Lennox G40UH-48C-135 Control Board
The Lennox G40UH-48C-135 control board is designed to direct everything including the gas valve, the igniter, all the various sensors and the blower all in one unit. Your system definitely will not be able to function lest the main control board is accurately installed and configured. A control board that you have chosen will have a matching part number that will fit in both the make and model of your heating and cooling system. You should always be careful when you choose a replacement because of the wide variety of models within certain brands.
Major clues your control board is going out
- When turned on, there is some sort of code displayed somewhere on the circuit board
- The whole unit will not do anything period
- Power to the circuit board has to be reset rather frequently in order to operate
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If you decide on picking up or purchasing any Lennox G40UH-48C-135 part, do your due diligence and double check the correct model as well as make a visual inspection so that you are positive that the correct replacement control board is being ordered. There is no rule that says you have to install it yourself. Locate a pro in your area to do it for you.
Feel free to download your manual for help.
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