The Carrier HH18HZ195 Rollout Switch is a critical safety component designed for Carrier furnace flame rollout protection. This OEM furnace safety switch features a Single Pole Single Throw (SPST) configuration with an automatic reset function, ensuring the system remains operational once safe temperatures are restored. Engineering specifications dictate a precise 195°F open point to interrupt the heating cycle during abnormal combustion conditions, with a reset at 115°F. This HH18HZ195 limit switch is often identified by the alternate part number L195-80 and is essential for maintaining the safety integrity of many 48-series and 58-series residential and commercial units.

For contractors performing HVAC furnace troubleshooting, this factory-authorized part provides the reliable thermal cutout necessary to protect the heat exchanger and surrounding components from extreme heat. Its compact design allows for direct replacement in tight burner compartments. Integrating a genuine Carrier HH18HZ195 ensures the equipment operates within the manufacturer's originally intended safety parameters without the risks associated with generic equivalents.

• Automatic Reset Functionality: Minimizes system downtime by automatically closing the circuit once the temperature drops to 115°F.
• Precise Thermal Monitoring: Factory-calibrated to open at exactly 195°F, providing a reliable defense against flame rollout.
• OEM Compatibility: Specifically engineered for Carrier, Bryant, and Payne equipment, including specialized 48FCDA and 48HCDA models.
• Durable SPST Construction: Built with high-temperature resistant materials to withstand the terminal environment of a furnace burner assembly.

What causes a Carrier HH18HZ195 to trip frequently?
Repeated tripping usually indicates a restricted flue, a cracked heat exchanger, or improper gas pressure. If the switch opens, technicians should inspect the combustion area for actual flame rollout before assuming a component failure.

Is the HH18HZ195 a manual or automatic reset switch?
This specific model is an automatic reset switch. It will restore the connection once the sensing element cools to 115°F. If your system requires a manual reset for safety compliance in a specific diagnostic code, verify the model number as some rollout switches are designed to stay open until manually depressed.

Can I bypass this switch during troubleshooting?
Bypassing a safety limit is strictly for temporary diagnostic testing by licensed professionals only. Operating a furnace without a functional rollout switch poses a significant fire hazard and risk of carbon monoxide exposure.

Item is Non Cancelable / Non Returnable

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.