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When should the gas flapper gasket be replaced
Technicians should look for hairline cracks in the hub
the unit features a totally enclosed air over (TEAO) design to protect internal components from environmental debris
If the motor hub spins freely and windings show proper resistance but the motor fails to start with 24V signals present
maintaining the original performance specifications of the 0
Lennox 25B73 Control Board R-448A When should the gas flapperThe Lennox 25B73 Control Board (part number 107626 01) is a critical OEM component designed to manage the startup sequences, safety interlocks, and communication between major HVAC components. As a direct replacement furnace control board, it regulates the operation of the inducer motor, gas valve, and blower motor, ensuring that ignition and shutdown cycles are handled with precision. This PC control board is engineered specifically for select Lennox