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Lennox G40UH-48B-090 Control Board
The control board is constructed to direct everything including the gas valve, the ignition igniter, all the various sensors as well as the air circulator all at once. Your furnace or AC will not run at all lest the main control board is installed as it should be according to the manufacturer. Be absolutely sure when you choose a control board because of the many variances of brand and air handler types. The proper control board will have a part number that will match both the make and model of the unit you have installed.
Some warnings poorly running primary control board
- Your HVAC unit is unable to function properly
- Could be an a certain error code indicated somewhere on the circuit board
- The whole system has to be reset quite a lot for it to kick in
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Before buying or purchasing any Lennox G40UH-48B-090 part 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 not difficult provided you have the time and have the tools to get it done.
Feel free to download your manual for help.
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