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Lennox XP19-036 Control Board
The control board is designed to command the gas valve, the igniter, most sensors as well as the air circulator all together. The entire heating and cooling system will not operate without this vital piece of hardware is installed. You should always be careful when you are choosing a replacement board due to variances between certain brands. The control board you choose will have to match part numbers both the make and model of your particular system.
Important clues of a failing primary control board
- The HVAC system has to be reset many times a week for the heating or cooling to kick in
- Air conditioner or furnace ceases to operate well
- There seems to be an error code indicated directly on the circuit board
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