Carrier HH18HA226 Rollout Switch
The Carrier HH18HA226 Rollout Switch is a critical safety component designed for Carrier, Bryant, and Payne gas furnaces. Engineered to detect flame rollout conditions—where burner flames escape the heat exchanger—this Single Pole Single Throw (SPST) switch protects the heating unit and surrounding structure from high-temperature damage. This specific model triggers an open circuit at 320 degrees F, immediately interrupting the gas valve circuit to stop combustion. Once the area cools to 50 degrees F, the Automatic Reset functionality restores continuity without requiring a manual service intervention, though a trip typically indicates underlying issues like a clogged heat exchanger or blocked exhaust venting. This OEM replacement part ensures your diagnostic and repair work meets factory specifications for safety and air handler integrity. Its compact design and durable construction provide technicians with a reliable solution for persistent furnace safety switch tripping caused by improper combustion airflow or burner manifold pressure issues.
Key Benefits- Precise Protection: Specifically calibrated to 320 degrees F open and 50 degrees F close for accurate thermal monitoring.
- OEM Compatibility: Guaranteed fit for Carrier furnace parts, ensuring HVAC system safety and long-term reliability.
- Ease of Service: Features automatic reset capability, reducing the need for manual resets during standard troubleshooting cycles.
- Standard Wiring: Utilizes a standard SPST contact configuration for fast installation on the burner box assembly.
What causes a flame rollout switch to trip?
A trip is usually caused by backdrafting, a cracked heat exchanger, or blocked intake/exhaust vents that push flames out of the burner chamber.
Can I bypass this switch for testing?
No, rollout switches are critical safety devices. Bypassing them risks fire or carbon monoxide leaks. If the switch keeps opening, diagnose the combustion air issue immediately.
Is the HH18HA226 a manual or automatic reset?
This model is an Automatic Reset switch, meaning it resets once temperatures drop to the 50-degree threshold, unlike standard manual-reset rollout switches.
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.
Carrier HH18HA226 Rollout Switch
The Carrier HH18HA226 Rollout Switch is a critical safety component designed for Carrier, Bryant, and Payne gas furnaces. Engineered to detect flame rollout conditions—where burner flames escape the heat exchanger—this Single Pole Single Throw (SPST) switch protects the heating unit and surrounding structure from high-temperature damage. This specific model triggers an open circuit at 320 degrees F, immediately interrupting the gas valve circuit to stop combustion. Once the area cools to 50 degrees F, the Automatic Reset functionality restores continuity without requiring a manual service intervention, though a trip typically indicates underlying issues like a clogged heat exchanger or blocked exhaust venting. This OEM replacement part ensures your diagnostic and repair work meets factory specifications for safety and air handler integrity. Its compact design and durable construction provide technicians with a reliable solution for persistent furnace safety switch tripping caused by improper combustion airflow or burner manifold pressure issues.
Key Benefits- Precise Protection: Specifically calibrated to 320 degrees F open and 50 degrees F close for accurate thermal monitoring.
- OEM Compatibility: Guaranteed fit for Carrier furnace parts, ensuring HVAC system safety and long-term reliability.
- Ease of Service: Features automatic reset capability, reducing the need for manual resets during standard troubleshooting cycles.
- Standard Wiring: Utilizes a standard SPST contact configuration for fast installation on the burner box assembly.
What causes a flame rollout switch to trip?
A trip is usually caused by backdrafting, a cracked heat exchanger, or blocked intake/exhaust vents that push flames out of the burner chamber.
Can I bypass this switch for testing?
No, rollout switches are critical safety devices. Bypassing them risks fire or carbon monoxide leaks. If the switch keeps opening, diagnose the combustion air issue immediately.
Is the HH18HA226 a manual or automatic reset?
This model is an Automatic Reset switch, meaning it resets once temperatures drop to the 50-degree threshold, unlike standard manual-reset rollout switches.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Carrier HH18HA226 Rollout Switch is a critical safety component designed for Carrier, Bryant, and Payne gas furnaces. Engineered to detect flame rollout conditions—where burner flames escape the heat exchanger—this Single Pole Single Throw (SPST) switch protects the heating unit and surrounding structure from high-temperature damage. This specific model triggers an open circuit at 320 degrees F, immediately interrupting the gas valve circuit to stop combustion. Once the area cools to 50 degrees F, the Automatic Reset functionality restores continuity without requiring a manual service intervention, though a trip typically indicates underlying issues like a clogged heat exchanger or blocked exhaust venting. This OEM replacement part ensures your diagnostic and repair work meets factory specifications for safety and air handler integrity. Its compact design and durable construction provide technicians with a reliable solution for persistent furnace safety switch tripping caused by improper combustion airflow or burner manifold pressure issues.
Key Benefits- Precise Protection: Specifically calibrated to 320 degrees F open and 50 degrees F close for accurate thermal monitoring.
- OEM Compatibility: Guaranteed fit for Carrier furnace parts, ensuring HVAC system safety and long-term reliability.
- Ease of Service: Features automatic reset capability, reducing the need for manual resets during standard troubleshooting cycles.
- Standard Wiring: Utilizes a standard SPST contact configuration for fast installation on the burner box assembly.
What causes a flame rollout switch to trip?
A trip is usually caused by backdrafting, a cracked heat exchanger, or blocked intake/exhaust vents that push flames out of the burner chamber.
Can I bypass this switch for testing?
No, rollout switches are critical safety devices. Bypassing them risks fire or carbon monoxide leaks. If the switch keeps opening, diagnose the combustion air issue immediately.
Is the HH18HA226 a manual or automatic reset?
This model is an Automatic Reset switch, meaning it resets once temperatures drop to the 50-degree threshold, unlike standard manual-reset rollout switches.
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.
