A resistored element like the SP10869NL is essential for glass-lined tanks

this part is specifically indexed for Reznor HVAC equipment

OEM Compatibility: Replaces Burnham Part 6112214 and is specifically sized for V-Series cast iron sections

While light cleaning with a non-abrasive pad may provide a temporary fix

Maxitrol R400S-3/8-CSA Regulator Els PW 17895 A resistored element like theThe Maxitrol R400S 3 8 CSA is a high performance gas pressure regulator engineered for precision fuel control in commercial and industrial HVACR applications. Built with a 3 8" NPT pipe size, this double diaphragm balanced valve design ensures stable outlet pressure even when upstream pressures fluctuate, preventing pilot dropouts and burner instability. The unit carries a CSA certified max inlet pressure of 1 2 PSI, though it has been Maxitrol tested