Heil Quaker ICP 1176906 Limit Switch

The Heil Quaker ICP 1176906 Limit Switch is a mission-critical OEM HVAC safety control designed to maintain thermal integrity within residential and light commercial gas furnaces. This automatic-reset disc-style switch features a 1176906 temperature rating with a 180°F cut-out and a 140°F cut-in. As a normally closed circuit component, it is engineered to interrupt the heating cycle if internal plenum temperatures exceed safe operating parameters, preventing heat exchanger damage and potential fire hazards. This ICP furnace replacement part ensures compatibility across high-efficiency systems from International Comfort Products, including Heil, Tempstar, Comfortmaker, and Arcoaire models.

Key Benefits for Technicians:

• Precision Thermal Calibration: Factory-set 180°F opening and 140°F closing points ensure accurate furnace high limit protection.
• Broad ICP Compatibility: Direct replacement for Heil Quaker furnace limit switches in popular F80CTL, N8MSL, and G80CTL series units.
• Automatic Reset Functionality: Eliminates manual intervention by restoring circuit continuity once temperatures return to the 140°F safe range.
• OEM Build Quality: Genuine disc-style construction provides the durability required for high-cycle environments in residential HVAC heating systems.

Common Questions & Troubleshooting:

How do I test the ICP 1176906 for failure?
Using a multimeter, check for continuity across the terminals at room temperature. As a normally closed (NC) switch, you should see a closed circuit; no continuity indicates a tripped or defective 1176906 limit switch.

What causes this limit switch to trip frequently?
Frequent cycling (short cycling) is typically caused by restricted airflow, such as a dirty air filter, blocked return ducts, or a failing blower motor, causing the furnace temperature sensor to reach the 180°F cut-out limit.

Is this switch compatible with multi-brand ICP equipment?
Yes, it is a universal International Comfort Products limit switch designed to fit Heil, Tempstar, Comfortmaker, Arcoaire, and KeepRite systems that specify part number 1176906.

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.