Lennox 52W29 Flame Sensor (LB-74940A)

Part Number: 52W29
Model Number: LB-74940A
Brand: Lennox
Product Type: Flame Sensor Kit
Probe Style: Straight Probe
Product Width: 3.625 in.
Probe Diameter: 0.114 in.
Weight: 0.05 lb.
OEM Replacement: Yes – Genuine Lennox OEM Part
Includes: 1 Flame Sensor (L68 / 102431-01)

Common Symptoms of a Failing Flame Sensor

• Furnace ignites but shuts off after 2–5 seconds.
• Burners light briefly and then go out.
• Furnace repeatedly attempts to ignite before locking out.
• Ignition failure or flame sense error codes.
• Intermittent heating, especially during colder weather.
• Home remains cold even though the thermostat is calling for heat.
• Furnace must be reset before it will operate again.

OemHvacPartsCanada.ca ships Lennox 52W29 flame sensor across Calgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, Fort McMurray, Grande Prairie, and communities throughout Alberta.

Even if you live in Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Milton, Pickering, Ajax, Whitby, Oshawa, Aurora, and Newmarket. We will ship the Lennox 52W29 flame sensor to you.