LB-74040B LB-74940B - Gas Furnace Flame Sensor Rod Replaces Lennox Armstrong Ducane

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  • LB-74040B LB-74940B Furnace Heater Gas Flame Sensor Sensing Rod Stick Repair Part
$12.99

Description

This is a new Gas Furnace Flame Sensor Rod. It replaces the part numbers listed below.
A flame sensor senses the furnace flame ensuring that ignition has occurred. It then monitors the flame until the furnace shut down. Should combustion be disrupted for any reason the sensor loses its signal and shuts the gas valve off.


Replaces:
LB-74040B LB-74940B
Difficulty Level
Repair Difficulty Level


Partial list of Model numbers that use this part:

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