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Lennox G40UH-24A-070 Control Board
The control board is made to control everything including the gas valve, the ignition igniter, all the various sensors as well as the air circulator all in one unit. The system will cease to activate without the main control board in its proper place and configured for your unit. You must be careful while choosing a new control board because of the wide variety of HVAC systems. The board you select must be compatible with both the brand and model of the unit you have installed.
Key symptoms of an unhealthy main circuit board
- Air conditioning or heating system does not start at all
- When turned on, there is numbered code directly somewhere on the circuit board
- The whole system has to be turned off and back on frequently for the system to continue working
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Before you decide on buying or ordering do your best and double check the model number and also make a visual comparison in order to be sure the proper replacement control board is being ordered. Installation of a new control board is a breeze if you have the know-how and have the proper tools to get it done.
Feel free to download your manual for help.
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