Heil Quaker ICP 1084749 Limit Switch
The Heil Quaker ICP 1084749 Limit Switch is a critical OEM replacement part designed for precision thermal monitoring in International Comfort Products (ICP) furnaces and air handlers. This 140-40 limit switch is engineered with a fixed cut-out temperature of 140?F and a cut-in temperature (reset) of 100?F. As a primary safety component, it prevents furnace overheating by breaking the 115V or 24V circuit to the gas valve or ignition control if the heat exchanger exceeds safe operating parameters, while also managing the timing of the blower fan to ensure efficient heat dissipation.
This L140-40 sequence switch is compatible with a wide range of brands under the ICP umbrella, including Heil, Tempstar, Arcoaire, Comfortmaker, Day & Night, and KeepRite. Field technicians typically source this part to resolve furnace short cycling or instances where the blower motor runs constantly due to a tripped or failed internal bimetal disc. When troubleshooting, verify the limit switch continuity and check for restricted airflow?often caused by a clogged furnace filter?before replacing the component.
Key Benefits for HVAC Contractors:- Genuine OEM Specification: Ensures exact mechanical fit and electrical compatibility with ICP equipment, maintaining the original safety certification of the unit.
- Precise Thermal Calibration: Features a 140?F high-limit trip point to protect the heat exchanger from thermal stress and premature failure.
- Broad Compatibility: Serves as the direct replacement for numerous model series, including AMFH, AMFK, and NAMFK, streamlining truck stock for service calls.
- Durable Bimetal Construction: Designed for reliable cycling and long-term resistance to carbon buildup on contacts in high-demand environments.
- What causes a 1084749 limit switch to trip frequently? Most "open limit" faults are symptomatic of airflow issues. Check for a dirty air filter, blocked return air ducts, or a failing blower capacitor before assuming the switch is defective.
- Can I use this to replace a different temperature-rated switch? No. Always match the L140-40 rating exactly. Installing a higher-rated switch can create a fire hazard, while a lower-rated one will cause nuisance tripping.
- How do I test this part in the field? With power disconnected, use a multimeter to check for continuity. If the switch remains open at room temperature, the internal contacts have failed or the manual reset (if applicable) has tripped.
This item is not eligible for free shipping.
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.
Original: $43.16
-65%$43.16
$15.11Heil Quaker ICP 1084749 Limit Switch
The Heil Quaker ICP 1084749 Limit Switch is a critical OEM replacement part designed for precision thermal monitoring in International Comfort Products (ICP) furnaces and air handlers. This 140-40 limit switch is engineered with a fixed cut-out temperature of 140?F and a cut-in temperature (reset) of 100?F. As a primary safety component, it prevents furnace overheating by breaking the 115V or 24V circuit to the gas valve or ignition control if the heat exchanger exceeds safe operating parameters, while also managing the timing of the blower fan to ensure efficient heat dissipation.
This L140-40 sequence switch is compatible with a wide range of brands under the ICP umbrella, including Heil, Tempstar, Arcoaire, Comfortmaker, Day & Night, and KeepRite. Field technicians typically source this part to resolve furnace short cycling or instances where the blower motor runs constantly due to a tripped or failed internal bimetal disc. When troubleshooting, verify the limit switch continuity and check for restricted airflow?often caused by a clogged furnace filter?before replacing the component.
Key Benefits for HVAC Contractors:- Genuine OEM Specification: Ensures exact mechanical fit and electrical compatibility with ICP equipment, maintaining the original safety certification of the unit.
- Precise Thermal Calibration: Features a 140?F high-limit trip point to protect the heat exchanger from thermal stress and premature failure.
- Broad Compatibility: Serves as the direct replacement for numerous model series, including AMFH, AMFK, and NAMFK, streamlining truck stock for service calls.
- Durable Bimetal Construction: Designed for reliable cycling and long-term resistance to carbon buildup on contacts in high-demand environments.
- What causes a 1084749 limit switch to trip frequently? Most "open limit" faults are symptomatic of airflow issues. Check for a dirty air filter, blocked return air ducts, or a failing blower capacitor before assuming the switch is defective.
- Can I use this to replace a different temperature-rated switch? No. Always match the L140-40 rating exactly. Installing a higher-rated switch can create a fire hazard, while a lower-rated one will cause nuisance tripping.
- How do I test this part in the field? With power disconnected, use a multimeter to check for continuity. If the switch remains open at room temperature, the internal contacts have failed or the manual reset (if applicable) has tripped.
This item is not eligible for free shipping.
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.
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Description
The Heil Quaker ICP 1084749 Limit Switch is a critical OEM replacement part designed for precision thermal monitoring in International Comfort Products (ICP) furnaces and air handlers. This 140-40 limit switch is engineered with a fixed cut-out temperature of 140?F and a cut-in temperature (reset) of 100?F. As a primary safety component, it prevents furnace overheating by breaking the 115V or 24V circuit to the gas valve or ignition control if the heat exchanger exceeds safe operating parameters, while also managing the timing of the blower fan to ensure efficient heat dissipation.
This L140-40 sequence switch is compatible with a wide range of brands under the ICP umbrella, including Heil, Tempstar, Arcoaire, Comfortmaker, Day & Night, and KeepRite. Field technicians typically source this part to resolve furnace short cycling or instances where the blower motor runs constantly due to a tripped or failed internal bimetal disc. When troubleshooting, verify the limit switch continuity and check for restricted airflow?often caused by a clogged furnace filter?before replacing the component.
Key Benefits for HVAC Contractors:- Genuine OEM Specification: Ensures exact mechanical fit and electrical compatibility with ICP equipment, maintaining the original safety certification of the unit.
- Precise Thermal Calibration: Features a 140?F high-limit trip point to protect the heat exchanger from thermal stress and premature failure.
- Broad Compatibility: Serves as the direct replacement for numerous model series, including AMFH, AMFK, and NAMFK, streamlining truck stock for service calls.
- Durable Bimetal Construction: Designed for reliable cycling and long-term resistance to carbon buildup on contacts in high-demand environments.
- What causes a 1084749 limit switch to trip frequently? Most "open limit" faults are symptomatic of airflow issues. Check for a dirty air filter, blocked return air ducts, or a failing blower capacitor before assuming the switch is defective.
- Can I use this to replace a different temperature-rated switch? No. Always match the L140-40 rating exactly. Installing a higher-rated switch can create a fire hazard, while a lower-rated one will cause nuisance tripping.
- How do I test this part in the field? With power disconnected, use a multimeter to check for continuity. If the switch remains open at room temperature, the internal contacts have failed or the manual reset (if applicable) has tripped.
This item is not eligible for free shipping.
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.
