the internal disc has likely failed and requires replacement

It is often listed in the venter and flue wrapper components of the technical manual

and the Cecilware CD140 PLA006 Aftermarket Canister or Hopper Base is engineered to meet the rigorous demands of high-volume commercial environments

Non-Linkage Design: Simplifies the mounting process to VG7000 series valves

The 1980 series features a robust construction utilizing a combination of copper and nickel alloys to ensure maximum electrical conductivity and a consistent 30mV output for reliable gas valve operation

Reznor 90204 Spring Kit the internal disc has likelyThe Reznor 90204 Spring Kit is an essential OEM replacement component designed for Natural Gas unit heater applications. This Honeywell 391936 cross referenced regulator spring is engineered specifically for technicians performing maintenance or conversions on compatible gas valves within the Reznor product line. As a veteran contractor knows, maintaining precise manifold pressure is critical for combustion efficiency and appliance safety. This