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Lennox HP13-042 Control Board
HVAC systems will not operate whatsoever lest this board is installed as it should be according to the manufacturer. The control board is designed to command everything including the gas valve, the igniter, most sensors and the blower all at once. Any control board you choose should have a replacement part number that matches both the make and model of air handler system you have. It is of utmost importance while searching to pick up a replacement control board due to differences in systems.
Chief elements of a declining primary control board
- There is some sort of error code being displayed somewhere on the circuit board
- The entire system ceases to run at all
- The system board needs to be reset more often than not in order to run
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