and JARD 12885

flat fit against the tank surface for precise monitoring

preventing premature failure in extreme ambient temperatures

or perform a capacitance test with a multimeter

and R8243A1031

Carrier HH19ZA965 Limit Switch and JARD 12885The 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