Carrier LH33WZ007 Flame Sensor
As a veteran technician, you know that a failed Carrier LH33WZ007 Flame Sensor is one of the most common causes of nuisance furnace lockouts. This OEM furnace flame sensor is a critical safety component designed specifically for Carrier gas furnace troubleshooting and maintenance. Engineered to withstand the extreme temperatures of the burner assembly, the LH33WZ007 utilizes the principle of flame rectification to signal the furnace control board that a stable pilot or burner flame is present. Without this microamp signal, the system will immediately terminate the ignition sequence to prevent hazardous unburned gas accumulation.
The Carrier LH33WZ007 features a high-grade ceramic insulator and a precision-bent flame sensor rod, ensuring it maintains proper alignment within the flame path of Carrier, Bryant, and Payne units. Replacing a fouled or cracked HVAC flame sensor with this genuine Carrier furnace replacement part restores reliable ignition and prevents the "short cycling" or "3-flash" error codes frequently encountered in the field. Its durable construction is designed for long-term resistance to carbon buildup and oxidation, providing consistent conductivity for residential heating systems.
Key Benefits for the Contractor- Direct OEM Fit: Ensures perfect alignment and terminal connection without the need for field modifications or generic mounting brackets.
- Rapid Flame Detection: High-conductivity rod material provides near-instantaneous signal response to the integrated control board.
- Safe Combustion: Acts as the primary fail-safe to prevent gas valve activation in the absence of an established flame.
- Universal Carrier Compatibility: Designed for a wide range of gas-fired appliances across the Carrier, Bryant, and Payne localized brands.
- Reduced Callbacks: Using genuine gas furnace flame sensors eliminates the reliability issues common with thin-gauge universal alternatives.
- Why is my furnace shutting down after 2-5 seconds of ignition? This typically indicates the furnace control board is not receiving the required microamp signal from the LH33WZ007 flame sensor. Check for rod oxidation or a cracked ceramic insulator.
- Can I clean the LH33WZ007 instead of replacing it? While light carbon can be cleaned with an emery cloth, the rod's surface eventually pits and degrades. Professional best practice is to replace the sensor when HVAC flame sensor replacement symptoms persist.
- How do I test my Carrier flame sensor? Set your multimeter to DC microamps (µA) and wire it in series with the sensor lead. A healthy LH33WZ007 should typically provide a reading between 1.5 and 5.0 µA when engulfed in flame.
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: $78.45
-65%$78.45
$27.46Product Information
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Description
As a veteran technician, you know that a failed Carrier LH33WZ007 Flame Sensor is one of the most common causes of nuisance furnace lockouts. This OEM furnace flame sensor is a critical safety component designed specifically for Carrier gas furnace troubleshooting and maintenance. Engineered to withstand the extreme temperatures of the burner assembly, the LH33WZ007 utilizes the principle of flame rectification to signal the furnace control board that a stable pilot or burner flame is present. Without this microamp signal, the system will immediately terminate the ignition sequence to prevent hazardous unburned gas accumulation.
The Carrier LH33WZ007 features a high-grade ceramic insulator and a precision-bent flame sensor rod, ensuring it maintains proper alignment within the flame path of Carrier, Bryant, and Payne units. Replacing a fouled or cracked HVAC flame sensor with this genuine Carrier furnace replacement part restores reliable ignition and prevents the "short cycling" or "3-flash" error codes frequently encountered in the field. Its durable construction is designed for long-term resistance to carbon buildup and oxidation, providing consistent conductivity for residential heating systems.
Key Benefits for the Contractor- Direct OEM Fit: Ensures perfect alignment and terminal connection without the need for field modifications or generic mounting brackets.
- Rapid Flame Detection: High-conductivity rod material provides near-instantaneous signal response to the integrated control board.
- Safe Combustion: Acts as the primary fail-safe to prevent gas valve activation in the absence of an established flame.
- Universal Carrier Compatibility: Designed for a wide range of gas-fired appliances across the Carrier, Bryant, and Payne localized brands.
- Reduced Callbacks: Using genuine gas furnace flame sensors eliminates the reliability issues common with thin-gauge universal alternatives.
- Why is my furnace shutting down after 2-5 seconds of ignition? This typically indicates the furnace control board is not receiving the required microamp signal from the LH33WZ007 flame sensor. Check for rod oxidation or a cracked ceramic insulator.
- Can I clean the LH33WZ007 instead of replacing it? While light carbon can be cleaned with an emery cloth, the rod's surface eventually pits and degrades. Professional best practice is to replace the sensor when HVAC flame sensor replacement symptoms persist.
- How do I test my Carrier flame sensor? Set your multimeter to DC microamps (µA) and wire it in series with the sensor lead. A healthy LH33WZ007 should typically provide a reading between 1.5 and 5.0 µA when engulfed in flame.
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.
