Heil Quaker ICP 1175306 Limit Switch

The Heil Quaker ICP 1175306 Limit Switch is a critical OEM replacement part designed for precision thermal protection in residential and commercial gas furnaces and packaged units. This L150F-40 limit switch is engineered with a fixed set point, featuring a high-limit open temperature of 150°F and a 40°F differential for the automatic reset. Built to meet original International Comfort Products (ICP) specifications, this 3-inch furnace high limit switch ensures a perfect fit and seamless integration for brands including Heil, Quaker, Arcoaire, Comfortmaker, KeepRite, and Tempstar. As a normally closed safety limit control, it monitors air temperature and interrupts the heating circuit to prevent overheating, protecting both the heat exchanger and the blower motor. This limit switch 1175306 utilizes a high-grade snap-action bimetal disc for responsive performance and long-term durability in demanding HVAC environments. For technicians servicing Carrier-family 3-inch main limits, this component replaces various equivalent parts, stabilizing system cycles and ensuring reliable ignition sequences.

Key Benefits:

• Verified Compatibility: Authentic OEM part for ICP, Heil, and Quaker systems, ensuring electrical and mechanical terminal alignment.
• Automatic Reset Function: Features a built-in 40°F differential that resets the circuit once internal temperatures return to safe operating levels.
• Robust Construction: Designed with industrial-grade materials to withstand high-cycling environments without premature contact fatigue.
• Crucial Safety Protection: Open-on-rise thermal protection at 150°F prevents equipment damage caused by restricted airflow or blower failure.

Common Questions:

• Does this limit switch fit 3-inch mounting profiles? Yes, the ICP 1175306 is a standard 3-inch main limit switch designed for various ICP-manufactured furnaces and packaged units.
• What causes a furnace limit switch to trip repeatedly? Frequent tripping often indicates restricted airflow, such as a dirty air filter, blocked return vents, or a failing blower motor, which triggers the 150°F safety cutoff.
• Can I use this as a universal replacement for other L150-40 switches? While the temperature rating is common, it is essential to verify the probe length and mounting bracket style to ensure it matches your specific furnace model.

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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.