Heil Quaker ICP 1013101 Limit Switch

The Heil Quaker ICP 1013101 Limit Switch is a critical OEM replacement safety component designed for International Comfort Products (ICP) heating systems. Engineered for high-temperature monitoring, this 250F M/R Limit Switch features a manual reset mechanism, ensuring that the system remains offline if the plenum temperature exceeds the 250°F safety threshold. This prevents potential heat exchanger damage and operational hazards caused by restricted airflow, such as clogged filters or blower motor failure. As an authentic HVAC replacement part, it provides the precise calibration required for veteran technicians to restore factory-spec safety protocols in residential and light industrial furnaces.

For contractors performing diagnostic services, this switch is a direct factory replacement for part number 1005548. Its robust construction is built to withstand frequent thermal cycling in demanding environments. When troubleshooting furnace short-cycling or blower fan "run-on" issues, verifying the continuity of the ICP 1013101 is a standard procedure. This component is compatible with a wide range of Heil, Quaker, Tempstar, and Comfortmaker units, including NAHL and PDX series models. Ensure proper mounting on the supply plenum to maintain accurate temperature sensing and system reliability.

• Precision Thermal Protection: Fixed 250°F trip point provides a definitive safety cutoff to prevent furnace overheating.
• Manual Reset Security: The M/R functionality requires a technician to inspect the system before restarting, preventing repeated cycling under fault conditions.
• OEM Compatibility: Designed specifically for ICP brands, ensuring exact fitment and terminal alignment without field modifications.
• Industrial-Grade Built: High-quality materials resist housing cracks and contact pitting for consistent electrical performance.

How do I know if my ICP 1013101 limit switch is tripped?
If your furnace burners shut off but the blower fan continues to run indefinitely, the limit switch likely detected an over-temperature event. Because this is a manual reset model, you must physically depress the reset button on the back of the switch after resolving the airflow issue.

What causes this limit switch to fail or trip frequently?
The most common culprits are restricted airflow from a dirty MERV-rated filter, blocked return air vents, or a failing blower motor. If the switch trips repeatedly despite clear airflow, it may have internal resistance or mechanical fatigue and requires replacement.

Can I replace a manual reset switch with an auto-reset version?
No. For safety and compliance, always replace like-for-like. Manual reset switches are specified in systems where an overheat condition requires a manual inspection to ensure the heat exchanger has not been compromised.

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.