The Carrier HH18HA506 is a genuine OEM high-limit temperature safety switch designed for use in Carrier, Bryant, and Payne gas-fired furnaces. This critical safety component kicks in when the internal furnace temperatures get too high — specifically it cuts out at approximately 240 °F and resets at approx. 200 °F — protecting your heating system from unsafe overheating.
Key Features
- High-limit set point: Opens at ~240 °F and closes at about ~200 °F, making it ideal for controlling excessive temperature situations.
- OEM quality: Factory Authorized Part ensures exact fit and performance per Carrier’s original equipment specifications.
- Compact footprint: With approximate dimensions of 1.6″ × 1.6″ × 0.8″, it fits in tight control panel or blower compartment spaces.
- Quick replacement: Drop-in design minimizes downtime for HVAC maintenance and repair professionals.
