Carrier HH19ZA965 Limit Switch OEM gaskets like the 09RA0221282

OEM gaskets like the 09RA0221282 are built to exact factory tolerances

No continuity indicates the switch is stuck open and requires replacement

The Belimo KH12 is a robust universal crankarm engineered for secure attachment to damper jackshafts and actuator assemblies

What causes a Reznor flame probe to fail

you should see 24V AC from the transformer when the thermostat calls for cooling

Carrier HH19ZA965 Limit Switch OEM gaskets like the 09RA0221282The Carrier HH19ZA965 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC units. Operating with a temperature range of 115 165F, this auto reset limit switch serves as a reliable thermal cutout, interrupting the burner circuit if heat exchanger temperatures exceed safe operational parameters. As the official HH19ZA965A replacement, this updated version ensures direct compatibility and