Lennox 44L48 Flame Sensor Replacement for Gas Furnaces

The Lennox 44L48 is a precision-engineered flame sensor designed to ensure safe and reliable operation of Lennox gas furnaces. This critical safety component detects the presence of a flame in gas-fired appliances, monitors the burner to ensure safe operation by confirming that the gas ignites properly, and signals the control board to shut off the gas supply if no flame is detected, preventing unburned fuel from accumulating.

Technical Specifications:

• Sensor dimensions: 0.114" diameter x 2.205" length
• Wire length: 22 inches with white insulation
• Construction: Kanthal D or Hoskins 815 element with glazed steatite insulator
• Connection: Nickel-plated steel male quick-connect terminals
• Terminals: Two 1/4" quick-connect (P-8-699)
• Wire gauge: 18 AWG
• Insulation temperature rating: 105°C

Compatible with various Lennox GCS and GCS20R series furnace models. Full model number: 44L4801. This genuine Lennox replacement part helps maintain optimal heating system performance and protects against unsafe operating conditions.