When a furnace experiences short-cycling or fails to sustain a burner ignition sequence after the trial for ignition period

Featuring a 3/4" NPT male inlet and a 3/4" FPT female outlet

This is a mechanical rebuild kit for internal components

This specific cartridge is rated for 20 SCFM systems

this is a mechanical snap-action thermostat that does not require a common wire or batteries for operation

Johnson Controls A25AN-1 Temperature Control 30067439-890 When a furnace experiences short-cyclingThe Johnson Controls A25AN 1 is a heavy duty warm air limit control designed for high limit protection in forced air heating systems. This mechanical temperature control features a single pole single throw (SPST) switch configuration that opens on temperature rise, providing a critical safety cutoff to prevent furnace overheating. With a setpoint range of 25 to 215F and a manual reset mechanism, the A25AN 1 ensures that equipment remains offline until