Product DescriptionThe LAARS LAARS-20035563 is a flame sensor designed for use in gas-fired heating equipment. The flame sensor monitors the presence of a burner flame by passing a small electrical current through the flame itself, confirming ignition to the control board. If no flame signal is detected within the trial-for-ignition period, the control board shuts down the gas valve as a safety measure. This component is a direct service replacement part for LAARS heating systems and is installed by licensed HVAC technicians and plumbers servicing gas appliances.This flame sensor is used in residential and light commercial gas-fired heating applications where LAARS controls are employed. It is a common service item replaced during routine maintenance or when a system presents with nuisance lockouts, weak flame signal faults, or ignition failure codes. Proper flame signal verification is critical to safe and efficient burner operation.Key FeaturesMonitors burner flame presence and communicates signal to the control boardTriggers safety shutoff of the gas valve when no flame is detectedDirect service replacement for LAARS gas-fired heating equipmentRestores proper ignition control and flame-sensing functionCompatibilityDesigned as an OEM-style replacement flame sensor for LAARS gas-fired heating equipment. Refer to your equipment documentation or contact LAARS technical support to confirm fitment for your specific unit model.Installation NotesInstallation should be performed by a licensed HVAC technician or gas appliance service professional. Always shut off the gas supply and disconnect electrical power to the unit before servicing any components. Flame sensors are typically secured with a single mounting screw and connected via a single wire lead; inspect the lead and connector for corrosion or damage during replacement. Work must comply with applicable local codes and the appliance manufacturers service instructions.Technical SpecificationsPart Type: Flame SensorStandard InformationBrand: LAARSManufacturer Part Number: LAARS-20035563