Description
The Robertshaw 10-681 is a direct replacement flame sensor designed to cross-reference Carrier OEM part number LH33WZ511. Engineered to Robertshaw’s exacting quality standards, this flame sensor delivers dependable flame detection performance to keep residential and light commercial furnaces operating safely and efficiently.
Product Overview
Flame sensors are a critical safety component in gas furnaces. They verify that a flame is present after the ignition sequence initiates — if no flame is detected, the control board shuts off the gas valve to prevent unburned gas accumulation. A worn or contaminated flame sensor is one of the most common causes of furnace lockout and no-heat service calls. The Robertshaw 10-681 provides a reliable, cost-effective replacement to restore proper furnace operation.
Key Features
- Direct OEM cross-reference for Carrier part number LH33WZ511
- Manufactured by Robertshaw, a trusted name in HVAC controls and ignition components
- Restores proper flame sensing and safety shutoff function
- Suitable for residential and light commercial gas furnace applications
- Helps eliminate nuisance lockouts caused by failed or degraded flame sensors
Compatible Applications
- Carrier gas furnaces requiring LH33WZ511 flame sensor replacement
- Verify compatibility with your specific furnace model before installation
Installation Notes
Always disconnect power and shut off the gas supply before servicing furnace components. Clean the flame sensor rod with fine steel wool or emery cloth if contamination is suspected before replacing. Consult the furnace manufacturer’s service manual for torque specifications and wiring details.
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