this fan protects the motor windings from premature failure

For high-temperature steam applications

If the board isn't sending voltage to the gas valve

the tube or orifice may be cracked or clogged

What is the difference between the WT and the WR models

Siemens Industrial Controls MT0500F Transformer 319847-401 this fan protects the motorThe Siemens Siemens MT0500F is a professional grade 500VA industrial control transformer specifically engineered for high demand HVACR and automated control systems. Built for heavy duty applications, this step down transformer manages a primary dual voltage input of 208 277V and provides a stable 120V secondary output. Its Class MT design incorporates silicon steel laminations to minimize eddy currents and ensure high magnetic permeability. Designed