Description
This is a BRAND NEW-IN-THE-BOX Lennox/Armstrong/Ducane 120 Volt Gas Furnace HSI (Hot Surface Ignitor). The Lennox/Armstrong/Ducane part # is 70L54 (also 70L54 & 20093901). Honeywell # is Q3450 & Q3400A. Good luck and Thanks for looking!
Function:
The purpose of an ignitor is to ignite the gas after the gas valve opens up. It most cases, the ignitor turns off after ignition has occurred.
Replaces Old Part #s:
70L54 70L5401 20093901
Repair Difficulty Level:
Partial List of Units that Use This Item:
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