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Lennox 13HPD-042 Control Board
The control board is made to operate everything including the gas valve, the ignition igniter, all the sensors as well as the air circulator all at once. HVAC systems will not operate whatsoever unless the control board is accurately installed and configured. You must be careful when choosing a control board because of the many variances of certain brands. A control board that you have chosen will have to match part numbers both the brand and model of air handler system you have.
Signals of an ailing main circuit board
- There is a numbered error code displayed somewhere on the board
- The whole system has to be reset many times a day for the heating or cooling to kick in
- The heating and cooling system is unwilling to run properly
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