Trane FLS014 Hsi Flame Sensor Angle Carrier

Product Description

The TRANE FLS014 is an angled hot surface ignition (HSI) flame sensor designed for use in gas furnace systems. The flame sensor detects the presence of a burner flame by passing a small electrical current through the flame itself, confirming ignition and allowing the gas valve to remain open. Without a functioning flame sensor, the furnace control board will shut down the heating cycle as a safety precaution. Licensed HVAC technicians install this component during routine maintenance, warranty repairs, or diagnostic service calls on residential and light commercial gas furnace systems.

The FLS014 is an angled-style sensor, meaning its mounting bracket positions the sensing rod at an angle relative to the burner flame. This geometry is common in furnace designs where the sensor must reach into the burner flame at a specific orientation. The raw title references Carrier as an application, indicating this sensor is used in Carrier-branded gas furnace platforms. It is appropriate for residential and light commercial heating applications where HSI ignition systems are employed.

Key Features

• Angled mounting geometry positions sensing rod correctly within the burner flame envelope
• Hot surface ignition compatible design for use with HSI furnace control systems
• OEM-style replacement maintains factory flame-sensing performance and safety logic
• Compact form factor suited to residential and light commercial gas furnace cabinets

Compatibility

The FLS014 is referenced as a replacement flame sensor for Carrier gas furnace applications. Consult the furnace service manual and OEM cross-reference documentation to confirm fitment for a specific model before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable codes, including the International Fuel Gas Code (IFGC). Shut off all power to the furnace at the disconnect switch and close the manual gas shutoff valve before beginning any service work. The flame sensor rod must be positioned within the burner flame path per the furnace manufacturer's service documentation. Do not overtighten the mounting screw, as ceramic insulators on flame sensor assemblies are brittle and can crack under excess torque.

Technical Specifications

• Sensor Style: Angled HSI flame sensor
• Ignition Type: Hot surface ignition (HSI)

Standard Information

• Brand: TRANE
• Manufacturer Part Number: FLS014