Trane Gas Furnace: TUD

Re: Replacement Control Board

The TUD gas furnace uses a 2-stage gas valve and 2-speed inducer.

The Trane OEM control board is a Part# CNT03077

A suitable replacement is White-Rodgers Part# 21M51U-843

• This is a kit that comes with the control board and a new 120V glow plug.
• Available at Lute Supply, Approximate cost = $236