and 58MCB Carrier furnace lines

if the original sensor has drifted and is not "opening" at the 60°F threshold

Enhanced Ignition: Delivers a concentrated arc to the burner electrodes for reliable cold-starts and reduced soot buildup

ensuring an airtight seal at the venter assembly is paramount to preventing air bypass and flue gas leakage

or the furnace failing to ignite while showing a pressure switch error code

Heil Quaker ICP 34335004 Limit Switch 321702-401 and 58MCB Carrier furnace linesUpgrade your system reliability with the Heil Quaker ICP 34335004 Limit Switch, a precise OEM replacement engineered for high performance thermal regulation. Designed specifically for Heil, Quaker, and International Comfort Products (ICP) furnace units, this automatic reset limit switch is a critical safety component that monitors heat exchanger temperatures to prevent thermal overload. When the internal plenum temperature reaches its 110? F set