
Heil Quaker ICP 1184422 Limit Switch
The Heil Quaker ICP 1184422 Limit Switch is a high-precision safety component engineered for critical thermal regulation within residential furnaces. Designed with a normally closed circuit, this component functions as a primary high-limit safety, preventing dangerous heat exchanger temperatures by interrupting the burner circuit if conditions exceed factory parameters. Specifically rated as an L170-20F limit switch, this device features a fixed open temperature of 170°F and a 20°F differential, resetting automatically when the ambient temperature drops to 150°F. This genuine OEM furnace part is crucial for maintaining the operational integrity of ICP heating systems, including brands like Tempstar, Comfortmaker, and Heil. Utilizing thermostat disc technology, the 1184422 ensures rapid response to airflow restrictions or blower failures. For field technicians, this is a direct-fit ICP replacement switch that maintains the factory safety profile. Proper integration of this high limit safety control helps troubleshoot "limit circuit open" faults and ensures consistent system uptime in demanding HVACR applications.
Key Benefits for Technicians:
- Ensures safe furnace operation by monitoring internal plenum temperatures effectively.
- Features an automatic reset function, reducing nuisance service calls after temporary overheat events.
- Engineered as a direct-fit ICP part to ensure seamless installation into existing bracketry without modification.
- Utilizes a bimetal disc design for high-reliability switching and long-term thermal cycling.
Common Questions:
What does the L170-20F rating mean for this switch?
The "L" indicates it is a limit control. "170" is the temperature at which the switch opens to break the circuit, and "20F" represents the fixed differential, meaning it will re-close at 150°F (170 minus 20).
Can I use this switch if my old part number is different?
This 1184422 limit switch is the direct replacement for multiple ICP furnace models. Technicians should verify that the temperature rating of the original part matches the 170°F specification before completing the swap.
Why is my furnace tripping this high limit switch?
Repeated tripping typically indicates an airflow issue, such as a clogged air filter, restricted ductwork, or a failing blower motor, causing the heat exchanger to overheat.
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: $11.92
-65%$11.92
$4.17Heil Quaker ICP 1184422 Limit Switch
The Heil Quaker ICP 1184422 Limit Switch is a high-precision safety component engineered for critical thermal regulation within residential furnaces. Designed with a normally closed circuit, this component functions as a primary high-limit safety, preventing dangerous heat exchanger temperatures by interrupting the burner circuit if conditions exceed factory parameters. Specifically rated as an L170-20F limit switch, this device features a fixed open temperature of 170°F and a 20°F differential, resetting automatically when the ambient temperature drops to 150°F. This genuine OEM furnace part is crucial for maintaining the operational integrity of ICP heating systems, including brands like Tempstar, Comfortmaker, and Heil. Utilizing thermostat disc technology, the 1184422 ensures rapid response to airflow restrictions or blower failures. For field technicians, this is a direct-fit ICP replacement switch that maintains the factory safety profile. Proper integration of this high limit safety control helps troubleshoot "limit circuit open" faults and ensures consistent system uptime in demanding HVACR applications.
Key Benefits for Technicians:
- Ensures safe furnace operation by monitoring internal plenum temperatures effectively.
- Features an automatic reset function, reducing nuisance service calls after temporary overheat events.
- Engineered as a direct-fit ICP part to ensure seamless installation into existing bracketry without modification.
- Utilizes a bimetal disc design for high-reliability switching and long-term thermal cycling.
Common Questions:
What does the L170-20F rating mean for this switch?
The "L" indicates it is a limit control. "170" is the temperature at which the switch opens to break the circuit, and "20F" represents the fixed differential, meaning it will re-close at 150°F (170 minus 20).
Can I use this switch if my old part number is different?
This 1184422 limit switch is the direct replacement for multiple ICP furnace models. Technicians should verify that the temperature rating of the original part matches the 170°F specification before completing the swap.
Why is my furnace tripping this high limit switch?
Repeated tripping typically indicates an airflow issue, such as a clogged air filter, restricted ductwork, or a failing blower motor, causing the heat exchanger to overheat.
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 1184422 Limit Switch is a high-precision safety component engineered for critical thermal regulation within residential furnaces. Designed with a normally closed circuit, this component functions as a primary high-limit safety, preventing dangerous heat exchanger temperatures by interrupting the burner circuit if conditions exceed factory parameters. Specifically rated as an L170-20F limit switch, this device features a fixed open temperature of 170°F and a 20°F differential, resetting automatically when the ambient temperature drops to 150°F. This genuine OEM furnace part is crucial for maintaining the operational integrity of ICP heating systems, including brands like Tempstar, Comfortmaker, and Heil. Utilizing thermostat disc technology, the 1184422 ensures rapid response to airflow restrictions or blower failures. For field technicians, this is a direct-fit ICP replacement switch that maintains the factory safety profile. Proper integration of this high limit safety control helps troubleshoot "limit circuit open" faults and ensures consistent system uptime in demanding HVACR applications.
Key Benefits for Technicians:
- Ensures safe furnace operation by monitoring internal plenum temperatures effectively.
- Features an automatic reset function, reducing nuisance service calls after temporary overheat events.
- Engineered as a direct-fit ICP part to ensure seamless installation into existing bracketry without modification.
- Utilizes a bimetal disc design for high-reliability switching and long-term thermal cycling.
Common Questions:
What does the L170-20F rating mean for this switch?
The "L" indicates it is a limit control. "170" is the temperature at which the switch opens to break the circuit, and "20F" represents the fixed differential, meaning it will re-close at 150°F (170 minus 20).
Can I use this switch if my old part number is different?
This 1184422 limit switch is the direct replacement for multiple ICP furnace models. Technicians should verify that the temperature rating of the original part matches the 170°F specification before completing the swap.
Why is my furnace tripping this high limit switch?
Repeated tripping typically indicates an airflow issue, such as a clogged air filter, restricted ductwork, or a failing blower motor, causing the heat exchanger to overheat.
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.












