Description
You are looking at a Lennox/Armstrong/Ducane Furnace Flame Sensor. This is a direct replacement for Lennox/Armstrong/Ducane part #s 18G89 & 18G8901. This flame sensor fits MANY furnaces including many brands not mentioned here. Good luck!
Function:
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 Old Part #s:
18G89 18G8901
Repair Difficulty Level:
Partial List of Units that Use This Item:
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