Heil Quaker ICP 1176908 Limit Switch
The Heil Quaker ICP 1176908 Limit Switch is a critical safety component engineered for precise temperature regulation in residential and commercial HVAC systems. Designed specifically for Heil, Tempstar, and Arcoaire equipment, this OEM replacement part is a fixed temperature limit calibrated to open at 235°F. In the field, technicians rely on this L235F-40 switch (often cross-referenced as HH18HA505A or Klixon 4349806) to prevent heat exchanger overheating by interrupted power to the gas valve when plenum temperatures exceed safe operating parameters. The bimetal disc design ensures a reliable mechanical response to thermal changes, protecting the furnace assembly from catastrophic failure during short-cycling or airflow restrictions. This 2-blade terminal switch features a standard flange mount for direct integration into existing furnace cabinets, maintaining system integrity and meeting ICP factory specifications for fossil fuel heating applications.
Key Benefits
- Ensures safe operation by providing secondary thermal protection at a 235-degree threshold.
- Direct OEM replacement for ICP part 1176908, ensuring correct flange alignment and terminal spacing.
- Prevents damage to the heat exchanger and blower motor during overheat conditions.
- Compatible with a wide range of International Comfort Products brands including Comfortmaker and KeepRite.
- Durable construction designed to withstand high-cycling environments in modern gas furnaces.
Common Questions
What are the symptoms of a failed 1176908 limit switch?
A faulty limit switch typically causes the furnace to short-cycle (shutting down before reaching the thermostat setpoint) or allows the blower fan to run indefinitely. If the switch is "stuck open," the burners will not ignite as a safety precaution.
Is this switch manually resettable?
No, the ICP 1176908 is an automatic reset limit switch. Once the temperature in the heat exchanger assembly drops below the differential (typically 40°F below the trip point), the circuit will close automatically to resume normal operation.
Can I use a higher temperature limit if my furnace keeps tripping?
Never bypass or increase the temperature rating of a limit switch. Frequent tripping usually indicates a restricted air filter, a failing blower motor, or blocked ductwork rather than a defective switch.
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: $7.65
-65%$7.65
$2.68Heil Quaker ICP 1176908 Limit Switch
The Heil Quaker ICP 1176908 Limit Switch is a critical safety component engineered for precise temperature regulation in residential and commercial HVAC systems. Designed specifically for Heil, Tempstar, and Arcoaire equipment, this OEM replacement part is a fixed temperature limit calibrated to open at 235°F. In the field, technicians rely on this L235F-40 switch (often cross-referenced as HH18HA505A or Klixon 4349806) to prevent heat exchanger overheating by interrupted power to the gas valve when plenum temperatures exceed safe operating parameters. The bimetal disc design ensures a reliable mechanical response to thermal changes, protecting the furnace assembly from catastrophic failure during short-cycling or airflow restrictions. This 2-blade terminal switch features a standard flange mount for direct integration into existing furnace cabinets, maintaining system integrity and meeting ICP factory specifications for fossil fuel heating applications.
Key Benefits
- Ensures safe operation by providing secondary thermal protection at a 235-degree threshold.
- Direct OEM replacement for ICP part 1176908, ensuring correct flange alignment and terminal spacing.
- Prevents damage to the heat exchanger and blower motor during overheat conditions.
- Compatible with a wide range of International Comfort Products brands including Comfortmaker and KeepRite.
- Durable construction designed to withstand high-cycling environments in modern gas furnaces.
Common Questions
What are the symptoms of a failed 1176908 limit switch?
A faulty limit switch typically causes the furnace to short-cycle (shutting down before reaching the thermostat setpoint) or allows the blower fan to run indefinitely. If the switch is "stuck open," the burners will not ignite as a safety precaution.
Is this switch manually resettable?
No, the ICP 1176908 is an automatic reset limit switch. Once the temperature in the heat exchanger assembly drops below the differential (typically 40°F below the trip point), the circuit will close automatically to resume normal operation.
Can I use a higher temperature limit if my furnace keeps tripping?
Never bypass or increase the temperature rating of a limit switch. Frequent tripping usually indicates a restricted air filter, a failing blower motor, or blocked ductwork rather than a defective switch.
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
The Heil Quaker ICP 1176908 Limit Switch is a critical safety component engineered for precise temperature regulation in residential and commercial HVAC systems. Designed specifically for Heil, Tempstar, and Arcoaire equipment, this OEM replacement part is a fixed temperature limit calibrated to open at 235°F. In the field, technicians rely on this L235F-40 switch (often cross-referenced as HH18HA505A or Klixon 4349806) to prevent heat exchanger overheating by interrupted power to the gas valve when plenum temperatures exceed safe operating parameters. The bimetal disc design ensures a reliable mechanical response to thermal changes, protecting the furnace assembly from catastrophic failure during short-cycling or airflow restrictions. This 2-blade terminal switch features a standard flange mount for direct integration into existing furnace cabinets, maintaining system integrity and meeting ICP factory specifications for fossil fuel heating applications.
Key Benefits
- Ensures safe operation by providing secondary thermal protection at a 235-degree threshold.
- Direct OEM replacement for ICP part 1176908, ensuring correct flange alignment and terminal spacing.
- Prevents damage to the heat exchanger and blower motor during overheat conditions.
- Compatible with a wide range of International Comfort Products brands including Comfortmaker and KeepRite.
- Durable construction designed to withstand high-cycling environments in modern gas furnaces.
Common Questions
What are the symptoms of a failed 1176908 limit switch?
A faulty limit switch typically causes the furnace to short-cycle (shutting down before reaching the thermostat setpoint) or allows the blower fan to run indefinitely. If the switch is "stuck open," the burners will not ignite as a safety precaution.
Is this switch manually resettable?
No, the ICP 1176908 is an automatic reset limit switch. Once the temperature in the heat exchanger assembly drops below the differential (typically 40°F below the trip point), the circuit will close automatically to resume normal operation.
Can I use a higher temperature limit if my furnace keeps tripping?
Never bypass or increase the temperature rating of a limit switch. Frequent tripping usually indicates a restricted air filter, a failing blower motor, or blocked ductwork rather than a defective switch.
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.
