For technicians troubleshooting furnace short cycling or safety lockouts

Common Questions What controller brands are compatible with the 10K Type III thermistor

Reliable Fail-Safe: Critical for ensuring dampers return to a closed or open state during system shutdown to prevent coil freezing or heat loss

offering specialized contamination control within a compact 3 cubic inch desiccant footprint

Precision Thermal Calibration: Factory-set to trigger at 175 degrees Fahrenheit to prevent localized overheating

Reznor 103323 Limit Switch For technicians troubleshooting furnace shortThe Reznor 103323 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in Reznor HVAC equipment, including SC, SCE, and SSCBL series duct furnaces. This 90 150F AUTO limit switch functions as a primary high limit safety, designed to break the electrical circuit if internal plenum temperatures exceed 150F, preventing heat exchanger damage and ensuring system integrity. As an auto reset thermal switch, it