Common Questions What ignition systems is the VR8204M1075 compatible with

The AV-7400 includes multiple actuator springs—yellow (3-7 psig)

Its streamlined design ensures that the diaphragm bead remains properly seated in the retention groove during high-cycle operations

When you are out on a service call and find a blown disconnect

The York S1-025-29083-002 is an automatic reset switch

Lennox 25B73 Control Board 321042-401 Common Questions What ignition systemsThe 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