Heil Quaker ICP 1003175 Limit Switch

The Heil Quaker ICP 1003175 Limit Switch is a critical safety component designed for high-performance temperature regulation in residential and mobile home furnace applications. Engineering specifications define this as an L150-30F limit switch, meaning it is set to open the circuit at a fixed 150°F high-limit threshold and features a 30°F differential for automatic reset. This OEM replacement part is essential for preventing heat exchanger damage by disengaging the gas valve and activating the blower motor when internal plenum temperatures exceed safe operating parameters.

For veteran technicians, the ICP 1003175 provides a reliable solution for units experiencing short-cycling or "limit open" error codes often associated with airflow restrictions. This furnace high limit switch replaces multiple legacy part numbers, including 1680197 and 1000736, ensuring broad compatibility across Heil, Quaker, Arcoaire, and Tempstar equipment. Its robust bimetal disc construction is built to withstand the rigors of frequent thermal cycling in high-efficiency systems, maintaining precise temperature limit switch calibration over the life of the heating equipment.

• Precise Thermal Control: Features a fixed 150°F trip point with a 30°F reset differential to ensure optimal equipment safety without premature tripping.
• Universal Compatibility: Functions as a direct OEM replacement for various ICP-manufactured brands, simplifying truck stock requirements.
• Safety Compliance: Engineered to meet strict manufacturer safety standards for HVAC temperature regulation and fire prevention.
• Durable Construction: High-grade materials designed to resist oxidation and terminal wear in harsh furnace environments.

• Why is my furnace flashing a 'limit switch open' code? This is typically caused by restricted airflow from a clogged filter, closed vents, or a failing blower motor, causing the ICP 1003175 to trip as designed.
• Can I bypass the limit switch for testing? Never bypass a safety limit. If the switch shows no continuity at room temperature, it has failed and requires immediate replacement.
• Is this switch compatible with mobile home furnaces? Yes, this specific small-footprint limit switch is a standard fitting for many ICP and Nordyne-style mobile home units.

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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.