
Heil Quaker ICP 1176903 Limit Switch
As a core safety component in modern forced-air systems, the Heil Quaker ICP 1176903 Limit Switch is engineered to monitor high-limit plenum temperatures with industrial precision. This genuine OEM furnace safety control features a fixed 200°F temperature rating, designed to interrupt the burner circuit immediately if the heat exchanger exceeds safe thermal thresholds. Primarily utilized across International Comfort Products (ICP) brands including Heil, Tempstar, and Comfortmaker, this switch serves as a direct replacement for part numbers HH18HA496A and LF18-194. The mechanical L200-40 snap-action design ensures a sharp, reliable break in the electrical path, preventing catastrophic equipment failure or heat exchanger damage during restricted airflow events or blower motor malfunctions.
Key Benefits
- Direct OEM Compatibility: Specifically calibrated for ICP furnace limit switch applications, ensuring exact factory fit and response times across Heil Quaker and Tempstar residential units.
- Critical Thermal Protection: The 200 degree furnace limit setting provides a rigorous fail-safe against overheating, protecting the system's structural integrity.
- High-Amperage Reliability: Robust electrical contacts are built to handle the high-cycle demands of professional HVAC service environments without premature drifting.
- Seamless Integration: Features standard spade terminal furnace replacement parts connectivity for fast, efficient field swaps by technicians.
Common Questions
How do I know if my 1176903 limit switch has tripped?
If your furnace blower runs continuously while the burners refuse to ignite, or if the system is short cycling frequently, the limit switch likely detected an over-temperature condition and opened the circuit. Professional diagnostics should include checking for airflow obstructions like clogged filters or restricted ductwork.
Can I use a higher temperature limit switch instead of the 1176903?
No. For safety and performance, always replace with the exact 200°F OEM limit switch specified by the manufacturer. Using a higher limit can lead to heat exchanger fatigue and unsafe operating conditions.
Is this switch a manual or automatic reset?
The ICP 1176903 is an automatic reset switch. Once the plenum temperature drops below the reset differential (typically 40°F below the trip point), the switch will close its internal contacts to allow normal furnace operation to resume.
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.
Heil Quaker ICP 1176903 Limit Switch
As a core safety component in modern forced-air systems, the Heil Quaker ICP 1176903 Limit Switch is engineered to monitor high-limit plenum temperatures with industrial precision. This genuine OEM furnace safety control features a fixed 200°F temperature rating, designed to interrupt the burner circuit immediately if the heat exchanger exceeds safe thermal thresholds. Primarily utilized across International Comfort Products (ICP) brands including Heil, Tempstar, and Comfortmaker, this switch serves as a direct replacement for part numbers HH18HA496A and LF18-194. The mechanical L200-40 snap-action design ensures a sharp, reliable break in the electrical path, preventing catastrophic equipment failure or heat exchanger damage during restricted airflow events or blower motor malfunctions.
Key Benefits
- Direct OEM Compatibility: Specifically calibrated for ICP furnace limit switch applications, ensuring exact factory fit and response times across Heil Quaker and Tempstar residential units.
- Critical Thermal Protection: The 200 degree furnace limit setting provides a rigorous fail-safe against overheating, protecting the system's structural integrity.
- High-Amperage Reliability: Robust electrical contacts are built to handle the high-cycle demands of professional HVAC service environments without premature drifting.
- Seamless Integration: Features standard spade terminal furnace replacement parts connectivity for fast, efficient field swaps by technicians.
Common Questions
How do I know if my 1176903 limit switch has tripped?
If your furnace blower runs continuously while the burners refuse to ignite, or if the system is short cycling frequently, the limit switch likely detected an over-temperature condition and opened the circuit. Professional diagnostics should include checking for airflow obstructions like clogged filters or restricted ductwork.
Can I use a higher temperature limit switch instead of the 1176903?
No. For safety and performance, always replace with the exact 200°F OEM limit switch specified by the manufacturer. Using a higher limit can lead to heat exchanger fatigue and unsafe operating conditions.
Is this switch a manual or automatic reset?
The ICP 1176903 is an automatic reset switch. Once the plenum temperature drops below the reset differential (typically 40°F below the trip point), the switch will close its internal contacts to allow normal furnace operation to resume.
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.
Product Information
Product Information
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Description
As a core safety component in modern forced-air systems, the Heil Quaker ICP 1176903 Limit Switch is engineered to monitor high-limit plenum temperatures with industrial precision. This genuine OEM furnace safety control features a fixed 200°F temperature rating, designed to interrupt the burner circuit immediately if the heat exchanger exceeds safe thermal thresholds. Primarily utilized across International Comfort Products (ICP) brands including Heil, Tempstar, and Comfortmaker, this switch serves as a direct replacement for part numbers HH18HA496A and LF18-194. The mechanical L200-40 snap-action design ensures a sharp, reliable break in the electrical path, preventing catastrophic equipment failure or heat exchanger damage during restricted airflow events or blower motor malfunctions.
Key Benefits
- Direct OEM Compatibility: Specifically calibrated for ICP furnace limit switch applications, ensuring exact factory fit and response times across Heil Quaker and Tempstar residential units.
- Critical Thermal Protection: The 200 degree furnace limit setting provides a rigorous fail-safe against overheating, protecting the system's structural integrity.
- High-Amperage Reliability: Robust electrical contacts are built to handle the high-cycle demands of professional HVAC service environments without premature drifting.
- Seamless Integration: Features standard spade terminal furnace replacement parts connectivity for fast, efficient field swaps by technicians.
Common Questions
How do I know if my 1176903 limit switch has tripped?
If your furnace blower runs continuously while the burners refuse to ignite, or if the system is short cycling frequently, the limit switch likely detected an over-temperature condition and opened the circuit. Professional diagnostics should include checking for airflow obstructions like clogged filters or restricted ductwork.
Can I use a higher temperature limit switch instead of the 1176903?
No. For safety and performance, always replace with the exact 200°F OEM limit switch specified by the manufacturer. Using a higher limit can lead to heat exchanger fatigue and unsafe operating conditions.
Is this switch a manual or automatic reset?
The ICP 1176903 is an automatic reset switch. Once the plenum temperature drops below the reset differential (typically 40°F below the trip point), the switch will close its internal contacts to allow normal furnace operation to resume.
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.












