Lennox 49M85 Spark Ignitor (49M8501)

Specifications

• Manufacturer: Lennox
• Part Number: 49M85
• Manufacturer Number: 49M8501
• Product Type: Spark Ignitor
• OEM Manufacturer: Precision Speed Equipment (PSE-L60)
• Ground Plate: Copper Plated
• Insulator: Glazed L-5 Steatite / Glazed Alumina
• Product Width: 3.9"
• Product Diameter: 0.365"
• Weight: 0.05 lb (0.02 kg)
• OEM: Genuine Lennox Factory Replacement Part

Common Symptoms of a Failing Lennox 49M85 Spark Ignitor

If you're servicing rooftop equipment in Calgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, or anywhere throughout Alberta, or maintaining commercial HVAC equipment in the Greater Toronto Area including Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Ajax, Whitby, and Oshawa, a failing spark ignitor can cause several ignition-related problems, including:

• Burners fail to ignite during a call for heat.
• Ignition control locks out after multiple failed ignition attempts.
• Intermittent ignition problems, especially during cold weather.
• Delayed burner ignition.
• Clicking or sparking is weak or inconsistent.
• Unit cycles through the ignition sequence without establishing flame.
• No heat even though the inducer motor and gas valve sequence appear normal.
• Cracked ceramic insulator or worn electrode results in poor spark performance and unreliable ignition.