Carrier HH18HA587 Switch
The Carrier HH18HA587 is a critical safety component designed for high-performance furnace combustion monitoring. This L235F-MR rollout switch functions as a manual reset limit switch, calibrated to open at 235 degrees Fahrenheit when sensing flame rollout or excessive heat buildup in the burner compartment. Engineered for specific Carrier, Bryant, and Payne gas furnaces, this single-pole, single-throw (SPST) switch ensures the system shuts down gas flow immediately if heat exceeds safe operating parameters. The HH18HA587 thermal switch features a robust ceramic body and high-conductivity terminals to maintain signal integrity in high-temperature environments. For field technicians, this HVAC flame rollout switch is an essential OEM replacement part required to restore furnace safety circuits and meet factory specifications. Proper diagnostics should involve verifying heat exchanger integrity and burner alignment before resetting the device to prevent repeated tripping and ensure long-term system reliability.
Key Benefits- Precise Calibration: Factory-set to trip at 235°F, providing a reliable safety cutoff for gas furnace burner assemblies.
- Manual Reset Mechanism: Requires a technician's inspection before the system can be restarted, preventing automatic cycling under unsafe conditions.
- OEM Compatibility: Exact drop-in replacement for hundreds of Carrier furnace models, ensuring correct hole alignment and terminal fitment.
- High-Temperature Durability: Constructed with materials designed to withstand the harsh environment of a furnace burner box without degradation.
What causes an L235F-MR rollout switch to trip?
A tripped switch usually indicates restricted flue venting, a cracked heat exchanger, or delayed ignition causing flames to "roll out" of the combustion chamber.
Can I replace a 235F switch with a different temperature rating?
No. Using a switch with a different temperature threshold compromises the safety design of the furnace and can lead to dangerous operating conditions.
Is the HH18HA587 compatible with multi-stage burners?
Yes, this switch is used across various furnace platforms, provided the OEM part number or thermal specifications match the original equipment manufacturer's requirements.
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.
Carrier HH18HA587 Switch
The Carrier HH18HA587 is a critical safety component designed for high-performance furnace combustion monitoring. This L235F-MR rollout switch functions as a manual reset limit switch, calibrated to open at 235 degrees Fahrenheit when sensing flame rollout or excessive heat buildup in the burner compartment. Engineered for specific Carrier, Bryant, and Payne gas furnaces, this single-pole, single-throw (SPST) switch ensures the system shuts down gas flow immediately if heat exceeds safe operating parameters. The HH18HA587 thermal switch features a robust ceramic body and high-conductivity terminals to maintain signal integrity in high-temperature environments. For field technicians, this HVAC flame rollout switch is an essential OEM replacement part required to restore furnace safety circuits and meet factory specifications. Proper diagnostics should involve verifying heat exchanger integrity and burner alignment before resetting the device to prevent repeated tripping and ensure long-term system reliability.
Key Benefits- Precise Calibration: Factory-set to trip at 235°F, providing a reliable safety cutoff for gas furnace burner assemblies.
- Manual Reset Mechanism: Requires a technician's inspection before the system can be restarted, preventing automatic cycling under unsafe conditions.
- OEM Compatibility: Exact drop-in replacement for hundreds of Carrier furnace models, ensuring correct hole alignment and terminal fitment.
- High-Temperature Durability: Constructed with materials designed to withstand the harsh environment of a furnace burner box without degradation.
What causes an L235F-MR rollout switch to trip?
A tripped switch usually indicates restricted flue venting, a cracked heat exchanger, or delayed ignition causing flames to "roll out" of the combustion chamber.
Can I replace a 235F switch with a different temperature rating?
No. Using a switch with a different temperature threshold compromises the safety design of the furnace and can lead to dangerous operating conditions.
Is the HH18HA587 compatible with multi-stage burners?
Yes, this switch is used across various furnace platforms, provided the OEM part number or thermal specifications match the original equipment manufacturer's requirements.
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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Shipping & Returns
Description
The Carrier HH18HA587 is a critical safety component designed for high-performance furnace combustion monitoring. This L235F-MR rollout switch functions as a manual reset limit switch, calibrated to open at 235 degrees Fahrenheit when sensing flame rollout or excessive heat buildup in the burner compartment. Engineered for specific Carrier, Bryant, and Payne gas furnaces, this single-pole, single-throw (SPST) switch ensures the system shuts down gas flow immediately if heat exceeds safe operating parameters. The HH18HA587 thermal switch features a robust ceramic body and high-conductivity terminals to maintain signal integrity in high-temperature environments. For field technicians, this HVAC flame rollout switch is an essential OEM replacement part required to restore furnace safety circuits and meet factory specifications. Proper diagnostics should involve verifying heat exchanger integrity and burner alignment before resetting the device to prevent repeated tripping and ensure long-term system reliability.
Key Benefits- Precise Calibration: Factory-set to trip at 235°F, providing a reliable safety cutoff for gas furnace burner assemblies.
- Manual Reset Mechanism: Requires a technician's inspection before the system can be restarted, preventing automatic cycling under unsafe conditions.
- OEM Compatibility: Exact drop-in replacement for hundreds of Carrier furnace models, ensuring correct hole alignment and terminal fitment.
- High-Temperature Durability: Constructed with materials designed to withstand the harsh environment of a furnace burner box without degradation.
What causes an L235F-MR rollout switch to trip?
A tripped switch usually indicates restricted flue venting, a cracked heat exchanger, or delayed ignition causing flames to "roll out" of the combustion chamber.
Can I replace a 235F switch with a different temperature rating?
No. Using a switch with a different temperature threshold compromises the safety design of the furnace and can lead to dangerous operating conditions.
Is the HH18HA587 compatible with multi-stage burners?
Yes, this switch is used across various furnace platforms, provided the OEM part number or thermal specifications match the original equipment manufacturer's requirements.
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.
