Description
OEM Lennox Armstrong Ducane Furnace Limit Switch Replaces 29M74 29M7401 36T01B3
This is a brand new OEM Lennox Armstrong Ducane upgraded Furnace Limit Switch. It replaces the part numbers listed below.
Function:
A limit switch is a safety device designed to shut down a piece of equipment.
Limits have a set point, which is in some cases, adjustable. The set point prevents the temperature or pressure from exceeding the rating of the switch.
Replaces Old Part #s:
29M74 29M7401 36T01B3
Repair Difficulty Level:
