Superior 20' sensing element provides maximum surface area protection for HVAC coils against stratification

System Protection: Secure beige housing prevents unauthorized setpoint adjustments in high-traffic commercial environments

it provides critical high-limit protection in mobile home furnaces

supporting system efficiency and environmental compliance

Common Questions & Troubleshooting Why is my furnace flashing a 'limit switch open' code

Reznor 68266 Switch 30067439-890 Superior 20' sensing element providesThe Reznor 68266 Switch is a critical combustion air pressure switch designed for wall mount installation in Reznor heating systems. This differential pressure switch acts as an air proving switch, ensuring that the venter motor is developing the necessary static pressure to safely exhaust combustion gases before the burner is permitted to ignite. Engineered for high reliability airflow monitoring, the Reznor 68266 features a precise 0. 58 + 0. 05 in