LENNOX Flame Sensor: Mfr Part # 40L81
LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Flame Sensor.
SKU 3G-OTH-110802
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
Need installation or engineering help?
Ask a question
Product Description
LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Flame Sensor.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a Lennox flame sensor used for?
A Lennox flame sensor detects the presence of a flame in a gas furnace or boiler. It ensures the gas valve stays open only when a flame is present, preventing unburned gas from accumulating. This safety device is critical for residential and commercial HVAC systems.
What are the specifications of the Lennox 40L81 flame sensor?
The Lennox 40L81 is a replacement flame sensor with manufacturer part number 40L81. It is designed for use in Lennox gas furnaces and boilers. The sensor monitors flame presence to control gas flow. Always verify compatibility with your specific unit before ordering.
Where to buy a Lennox 40L81 flame sensor worldwide?
You can source the Lennox 40L81 flame sensor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this replacement part.
How to install a Lennox flame sensor?
Turn off power and gas to the furnace. Remove the burner access panel. Locate the flame sensor, typically near the burner. Disconnect the wire and remove the mounting screw. Install the new Lennox 40L81 sensor, reconnect the wire, and reassemble. Test operation per manufacturer instructions.
Used in
Common applications for LENNOXLENNOX Products
3G Electric supplies LENNOX replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
