Raypak 206A/266A/336A/406A Unitherm Governor Plug (013738F) marquisspas A control system is useful

A control system is useful because it brings the supported pump

When the top side of a dial valve begins to fail

or no longer keeping the selected operating mode clearly separated

Matching the correct molded format and wire profile helps preserve connection accuracy and simplifies replacement planning

5 horsepower applications where the original impeller has cracked

Raypak 206A/266A/336A/406A Unitherm Governor Plug (013738F) marquisspas A control system is usefulRaypak 206A 266A 336A 406A Unitherm Governor Plug is a replacement Raypak heater service part used within the combustion, water flow, heat transfer, or burner support area of compatible units. These components are critical to how the heater moves water, manages heat, supports the burner assembly, or protects the internal combustion chamber. Selecting the exact replacement helps maintain reliable performance and avoids fitment issues during repair. Use