Carrier HH680109 Rollout Switch

The Carrier HH680109 Rollout Switch is a critical safety component designed for furnace combustion chambers, specifically engineered to detect sustained flame rollout conditions. This 190F manual reset rollout switch features a single pole double throw (SPDT) configuration, providing reliable circuit interruption and signaling for modern HVAC control boards. As a direct OEM replacement for HH22HA189, it ensures precise thermal calibration for Carrier, Bryant, and Payne gas furnaces. Technicians should prioritize this disc-style thermal switch when performing HVAC furnace repair to maintain factory safety specifications. The 190-degree Fahrenheit trip point is critical for preventing heat exchanger damage and hazardous exhaust ventilation. Its robust mounting bracket and 1/4-inch male spade terminals facilitate quick installation in tight burner compartments, ensuring a secure electrical connection capable of handling high-amperage cycles without premature fatigue or nuisance tripping.

• Factory-Calibrated Thermal Sensing: Rated at 190°F (88°C) to ensure rapid response to flame rollout conditions.
• Manual Reset Mechanism: Requires manual intervention after a trip, prompting a necessary system inspection by a technician.
• Direct OEM Compatibility: Serves as the official HH22HA189 replacement switch, maintaining system listing requirements.
• SPDT Contact Configuration: Allows for versatile wiring, supporting both system shutdown and fault indication.
• Durable Construction: Engineered to withstand the extreme temperature environments typical of burner heat shields.

Is the HH680109 compatible with older Bryant furnaces?
Yes, this switch is the standard replacement for many Carrier-family brands, including Bryant and Payne, provided the original part matches the HH22HA189 or 190F manual reset spec.

Can I bypass this switch for testing?
Bypassing a furnace rollout limit switch is strictly for temporary diagnostic purposes and should never be done permanently, as it protects against fire hazards and carbon monoxide leaks.

Why does my rollout switch keep tripping?
Recurring trips often indicate a cracked heat exchanger, soot buildup, or improper gas pressure, necessitating a full combustion analysis.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.