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Lennox G43UF Ignition Control Board
The purpose of the ignition control board is that it manages gas intake, the ignition sequence and the flame sensing circuits. It has been a very important device that some companies have moved to be a part of the main control board instead of having two separate boards.
Key signs of a weak Lennox ignition control board
- The primary ignition sequence refuses to commence then the thermostat send a signal
- Every other device within the heating and AC system is looked at and turns out to be in good condition
- The initial signal from the thermostat never does reach the main control board
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If you are going to be buying or ordering a replacement ignition control board for your Lennox G43UF, do your due diligence and double check the correct model and also make a visual inspection in order to be sure the right ignition control board is being ordered. Installation of the ignition control board is a piece of cake assuming you have the know-how and have the tools to get it done.
Feel free to download your manual for help.
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