Lennox 11K39 Temperature Sensor
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Lennox 11K39 Temperature Sensor

Lennox 11K39 Temperature Sensor

The Lennox 11K39 Temperature Sensor is a precision Lennox thermal thermistor engineered for direct integration with Lennox HVAC and refrigeration control boards. This HVAC discharge air sensor provides critical real-time resistance data, allowing the system to modulate compressor staging and fan cycles based on precise thermal atmospheric conditions. Designed to eliminate the drift common in aftermarket components, this Lennox OEM replacement sensor ensures the control logic receives accurate voltage feedback to prevent equipment short-cycling and evaporator coil icing.

When troubleshooting Lennox furnace error codes or irregular defrost cycles, technicians often find the Lennox 11K39 to be the root cause of high-limit trips or improper staging. This component is essential for maintaining the target setpoint and optimizing the HVAC system efficiency. It mounts securely within the air stream or coil assembly, providing the durable moisture-resistant housing required for long-term reliability in high-cycle commercial and residential environments.

Key Benefits:
  • OEM Lennox compatibility ensures seamless integration with existing control board logic and wiring harnesses.
  • High-accuracy thermistor resistance readings prevent improper system cycling and energy waste.
  • Designed for direct-fit installation in coil or air stream locations to reduce field labor time.
  • Engineered to resolve performance issues related to HVAC sensor failure and incorrect ambient readings.
  • Robust construction maintains calibration under variable thermal loads and high-humidity conditions.
Common Questions:
  • How do I verify a Lennox 11K39 sensor failure? Technicians should perform a resistance check using a multimeter and compare the Ohms to the temperature-resistance chart found in the Lennox service manual.
  • Can this sensor be used in both heating and cooling applications? Yes, this sensor is utilized across various Lennox platforms to monitor air or coil temperatures for balanced system operation.
  • Does this part include the mounting clip? This is the 11K39 lead and sensor assembly; always verify if your specific housing or clip requires separate replacement.

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.

$83.40
Lennox 11K39 Temperature Sensor
$83.40

Lennox 11K39 Temperature Sensor

The Lennox 11K39 Temperature Sensor is a precision Lennox thermal thermistor engineered for direct integration with Lennox HVAC and refrigeration control boards. This HVAC discharge air sensor provides critical real-time resistance data, allowing the system to modulate compressor staging and fan cycles based on precise thermal atmospheric conditions. Designed to eliminate the drift common in aftermarket components, this Lennox OEM replacement sensor ensures the control logic receives accurate voltage feedback to prevent equipment short-cycling and evaporator coil icing.

When troubleshooting Lennox furnace error codes or irregular defrost cycles, technicians often find the Lennox 11K39 to be the root cause of high-limit trips or improper staging. This component is essential for maintaining the target setpoint and optimizing the HVAC system efficiency. It mounts securely within the air stream or coil assembly, providing the durable moisture-resistant housing required for long-term reliability in high-cycle commercial and residential environments.

Key Benefits:
  • OEM Lennox compatibility ensures seamless integration with existing control board logic and wiring harnesses.
  • High-accuracy thermistor resistance readings prevent improper system cycling and energy waste.
  • Designed for direct-fit installation in coil or air stream locations to reduce field labor time.
  • Engineered to resolve performance issues related to HVAC sensor failure and incorrect ambient readings.
  • Robust construction maintains calibration under variable thermal loads and high-humidity conditions.
Common Questions:
  • How do I verify a Lennox 11K39 sensor failure? Technicians should perform a resistance check using a multimeter and compare the Ohms to the temperature-resistance chart found in the Lennox service manual.
  • Can this sensor be used in both heating and cooling applications? Yes, this sensor is utilized across various Lennox platforms to monitor air or coil temperatures for balanced system operation.
  • Does this part include the mounting clip? This is the 11K39 lead and sensor assembly; always verify if your specific housing or clip requires separate replacement.

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

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Description

The Lennox 11K39 Temperature Sensor is a precision Lennox thermal thermistor engineered for direct integration with Lennox HVAC and refrigeration control boards. This HVAC discharge air sensor provides critical real-time resistance data, allowing the system to modulate compressor staging and fan cycles based on precise thermal atmospheric conditions. Designed to eliminate the drift common in aftermarket components, this Lennox OEM replacement sensor ensures the control logic receives accurate voltage feedback to prevent equipment short-cycling and evaporator coil icing.

When troubleshooting Lennox furnace error codes or irregular defrost cycles, technicians often find the Lennox 11K39 to be the root cause of high-limit trips or improper staging. This component is essential for maintaining the target setpoint and optimizing the HVAC system efficiency. It mounts securely within the air stream or coil assembly, providing the durable moisture-resistant housing required for long-term reliability in high-cycle commercial and residential environments.

Key Benefits:
  • OEM Lennox compatibility ensures seamless integration with existing control board logic and wiring harnesses.
  • High-accuracy thermistor resistance readings prevent improper system cycling and energy waste.
  • Designed for direct-fit installation in coil or air stream locations to reduce field labor time.
  • Engineered to resolve performance issues related to HVAC sensor failure and incorrect ambient readings.
  • Robust construction maintains calibration under variable thermal loads and high-humidity conditions.
Common Questions:
  • How do I verify a Lennox 11K39 sensor failure? Technicians should perform a resistance check using a multimeter and compare the Ohms to the temperature-resistance chart found in the Lennox service manual.
  • Can this sensor be used in both heating and cooling applications? Yes, this sensor is utilized across various Lennox platforms to monitor air or coil temperatures for balanced system operation.
  • Does this part include the mounting clip? This is the 11K39 lead and sensor assembly; always verify if your specific housing or clip requires separate replacement.

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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