Nordyne 904768 Door Set 321702-401 The stainless steel sensing probe

The stainless steel sensing probe provides superior moisture resistance and durability in splashproof environments like walk-in coolers

With a factory-preset 5% deadband (adjustable to 3%) and field-tunable input span and start point potentiometers

The Nordyne 903400 Replacement Kit is a field-proven solution for restoring critical ignition and control functions in a wide range of gas-fired HVAC systems

using factory-authorized harnesses like the 338501-701 is essential to maintain the integrity of the equipment’s electrical system and avoid the voltage drop-offs or connector failures often associated with generic alternatives

Always verify the fan blade diameter

Nordyne 904768 Door Set 321702-401 The stainless steel sensing probeThe Nordyne 904768 Door Set is a precision engineered replacement panel assembly designed specifically for M7RL and M7TL series gas furnaces. This OEM kit ensures a proper airtight seal across the heat exchanger and blower compartments, which is critical for maintaining correct static pressure and furnace efficiency. Constructed from heavy gauge galvanized steel with a high durability finish, the upper and lower door set provides necessary protection