Lochinvar L100112678 Flame Sensor

Product Description

The LOCHINVAR L100112678 is a flame sensor designed for use in gas-fired heating equipment. Flame sensors perform a critical safety function: they detect the presence of a burner flame during the ignition sequence and signal the control board to keep the gas valve open. If flame is not confirmed within the trial-for-ignition period, the control board locks out and shuts off the gas supply. This part is installed by licensed HVAC technicians and gas appliance service professionals during routine maintenance or fault diagnosis.

Flame sensors are a common service item in residential and light commercial gas heating systems. A sensor that is fouled, corroded, or out of specification will cause nuisance lockouts, intermittent heating, or a no-heat condition. Replacing the sensor with a direct OEM-style part restores reliable flame detection and normal control board communication.

Key Features

• Performs flame rectification sensing to confirm active burner flame
• Triggers control board lockout if flame is not detected within the ignition trial period
• OEM replacement part for LOCHINVAR heating equipment
• Designed for use in gas-fired appliance applications

Compatibility

Designed as an OEM-style replacement flame sensor for LOCHINVAR gas-fired heating equipment. Refer to equipment documentation or contact LOCHINVAR technical support to confirm fitment for a specific model.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance service professional. Shut off power to the appliance and allow the system to cool before removing the existing sensor. The sensor body and mounting area should be inspected for carbon buildup or corrosion during replacement. Follow all applicable local codes and manufacturer service documentation when reinstalling.

Technical Specifications

• Product Type: Flame Sensor

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100112678