Carrier HH18HA201 Limit Switch
The Carrier HH18HA201 Limit Switch is a critical safety component designed for precise thermal monitoring within furnace heat exchangers and air handlers. Engineered as a 160-degree furnace limit switch, this L160-40 thermally actuated control prevents equipment overheating by breaking the electrical circuit when the internal temperature exceeds the 160°F fixed setpoint. It features a 40°F differential, ensuring the system resets once temperatures normalize, preventing rapid cycling. This genuine OEM Carrier replacement part is built for durability in high-cycle environments, providing the exact electrical ratings required for furnace high limit protection. When diagnosing a furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, but replacing a worn HH18HA201 ensures reliable flame rollout and over-temperature protection. This bimetal sensor is compatible with a wide range of Carrier, Bryant, and Payne gas-fired furnaces, maintaining the specific safety parameters required by the original equipment manufacturer.
Key Benefits:- Precise Thermal Control: Fixed 160°F trip point ensures consistent high-limit safety monitoring.
- OEM Compatibility: Exact replacement for Carrier furnace parts, ensuring proper fit and electrical terminal alignment.
- System Protection: Effectively prevents heat exchanger damage by interrupting power during restricted airflow conditions.
- Restricted Manual Reset: Built to industry standards for safety switches, preventing operation during unsafe thermal events.
How do I know if the HH18HA201 is the cause of my furnace shutting down?
If your furnace blower continues to run while the burners shut off prematurely, a multimeter test for continuity across the limit switch terminals will determine if the circuit is open at room temperature, indicating a failed sensor.
Can I use a limit switch with a different temperature rating?
No. The L160F rating is specifically calibrated for the heat exchanger’s airflow and BTU output. Using a different rating can lead to premature failure or a hazardous overheating condition.
What causes this limit switch to trip repeatedly?
Repeated tripping of the thermal limit switch is usually caused by restricted airflow, such as a dirty 1-inch pleated filter, a failing inducer motor, or a clogged evaporator coil.
Item is Non Cancelable / Non Returnable
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: $20.57
-65%$20.57
$7.20Carrier HH18HA201 Limit Switch
The Carrier HH18HA201 Limit Switch is a critical safety component designed for precise thermal monitoring within furnace heat exchangers and air handlers. Engineered as a 160-degree furnace limit switch, this L160-40 thermally actuated control prevents equipment overheating by breaking the electrical circuit when the internal temperature exceeds the 160°F fixed setpoint. It features a 40°F differential, ensuring the system resets once temperatures normalize, preventing rapid cycling. This genuine OEM Carrier replacement part is built for durability in high-cycle environments, providing the exact electrical ratings required for furnace high limit protection. When diagnosing a furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, but replacing a worn HH18HA201 ensures reliable flame rollout and over-temperature protection. This bimetal sensor is compatible with a wide range of Carrier, Bryant, and Payne gas-fired furnaces, maintaining the specific safety parameters required by the original equipment manufacturer.
Key Benefits:- Precise Thermal Control: Fixed 160°F trip point ensures consistent high-limit safety monitoring.
- OEM Compatibility: Exact replacement for Carrier furnace parts, ensuring proper fit and electrical terminal alignment.
- System Protection: Effectively prevents heat exchanger damage by interrupting power during restricted airflow conditions.
- Restricted Manual Reset: Built to industry standards for safety switches, preventing operation during unsafe thermal events.
How do I know if the HH18HA201 is the cause of my furnace shutting down?
If your furnace blower continues to run while the burners shut off prematurely, a multimeter test for continuity across the limit switch terminals will determine if the circuit is open at room temperature, indicating a failed sensor.
Can I use a limit switch with a different temperature rating?
No. The L160F rating is specifically calibrated for the heat exchanger’s airflow and BTU output. Using a different rating can lead to premature failure or a hazardous overheating condition.
What causes this limit switch to trip repeatedly?
Repeated tripping of the thermal limit switch is usually caused by restricted airflow, such as a dirty 1-inch pleated filter, a failing inducer motor, or a clogged evaporator coil.
Item is Non Cancelable / Non Returnable
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 Carrier HH18HA201 Limit Switch is a critical safety component designed for precise thermal monitoring within furnace heat exchangers and air handlers. Engineered as a 160-degree furnace limit switch, this L160-40 thermally actuated control prevents equipment overheating by breaking the electrical circuit when the internal temperature exceeds the 160°F fixed setpoint. It features a 40°F differential, ensuring the system resets once temperatures normalize, preventing rapid cycling. This genuine OEM Carrier replacement part is built for durability in high-cycle environments, providing the exact electrical ratings required for furnace high limit protection. When diagnosing a furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, but replacing a worn HH18HA201 ensures reliable flame rollout and over-temperature protection. This bimetal sensor is compatible with a wide range of Carrier, Bryant, and Payne gas-fired furnaces, maintaining the specific safety parameters required by the original equipment manufacturer.
Key Benefits:- Precise Thermal Control: Fixed 160°F trip point ensures consistent high-limit safety monitoring.
- OEM Compatibility: Exact replacement for Carrier furnace parts, ensuring proper fit and electrical terminal alignment.
- System Protection: Effectively prevents heat exchanger damage by interrupting power during restricted airflow conditions.
- Restricted Manual Reset: Built to industry standards for safety switches, preventing operation during unsafe thermal events.
How do I know if the HH18HA201 is the cause of my furnace shutting down?
If your furnace blower continues to run while the burners shut off prematurely, a multimeter test for continuity across the limit switch terminals will determine if the circuit is open at room temperature, indicating a failed sensor.
Can I use a limit switch with a different temperature rating?
No. The L160F rating is specifically calibrated for the heat exchanger’s airflow and BTU output. Using a different rating can lead to premature failure or a hazardous overheating condition.
What causes this limit switch to trip repeatedly?
Repeated tripping of the thermal limit switch is usually caused by restricted airflow, such as a dirty 1-inch pleated filter, a failing inducer motor, or a clogged evaporator coil.
Item is Non Cancelable / Non Returnable
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.
