When your residential gas-fired furnace needs reliable safety monitoring, the Carrier HH12ZZ190 high-limit switch is a trusted OEM solution. Specifically engineered with a 190 °F cut-out and a 40 °F differential (reset around 150 °F), this auto-reset limit switch helps protect your equipment from overheating and maintains safe heating system operation.
Key Features
- Set-point: 190 °F cut-out temperature — designed to open when the internal furnace temperature rises to this level.
- Differential: 40 °F drop-out (closing) temperature — typically around 150 °F when system cools.
- Auto-Reset Functionality: The switch automatically resets once the temperature drops below the lower threshold, reducing maintenance needs.
- OEM Quality: A genuine Carrier part, designed for compatibility with multiple Carrier, Bryant and Payne furnace models.
- Compact Form Factor: Small footprint, delivers reliable performance in tight control compartments.
