Description
Ensure the safety and reliable operation of your heating system with the Carrier HH18HA452 flame-rollout limit switch, a genuine OEM replacement designed for use in a wide range of Carrier, Bryant, and Payne furnaces. This critical safety component helps stop the burner if flames rollout beyond the combustion chamber—preventing potential damage or fire hazards.
Key Features
- Opens at 250 °F to detect flame-rollout conditions and immediately shut down the burner.
- Manual-reset, single-pole, single-throw (SPST) switch simplifies troubleshooting and maintenance.
- Genuine OEM quality from Carrier, designed to meet strict manufacturer specifications for performance and compatibility.
- Compact design and straightforward installation, making it ideal for quick replacement in residential and light-commercial furnaces.
- Helps protect the blower, heat exchanger, and furnace components from the risks of improper combustion or inadequate venting.











