Robertshaw 50A50-405 Upgraded Furnace Control Board – Replacement For D340035P01 – Fits Lennox, Luxaire, Rheem, Ruud 24V Systems

If your furnace or HVAC system is acting up—not lighting, blower issues, or just dead—the control board might be fried.

This Robertshaw 50A50-405 is an upgraded replacement that works with a ton of systems, including Lennox, Luxaire, Rheem, and Ruud.

It's a direct swap for the D340035P01 board, and it handles gas furnaces, split systems, heat pumps, and dual-fuel setups.

Runs on 24V with a 50 amp capacity, single phase.

It's a compact board—about 6x1x1 inches—and weighs just a pound.

Comes with a 1-month warranty, so test it out quick.

Made from durable plastic, this board gets your heat or AC back online fast.

Don't freeze or sweat—swap it out and get comfortable.