McDonnell & Miller 312700 Body Gasket What causes this limit switch

What causes this limit switch to trip frequently

Dryseal Threads: Features long NPT threads to minimize the risk of leakage and simplify HVAC fitting installation

This part is cross-compatible with several valve variants including the LF70A

veteran technicians rely on this switch to monitor the burner transition area

Can I use an auto-reset switch instead of this manual reset version

McDonnell & Miller 312700 Body Gasket What causes this limit switchFor contractors servicing steam and hot water boilers, the McDonnell & Miller 312700 Body Gasket (Model 37 26) is a critical OEM component required to maintain the pressure tight integrity of 47 Series mechanical water feeders. This eight hole gasket is specifically engineered for use with the Series 47 2 combination water feeder and low water cut off units, as well as the 247 and 247 2 models. Over time, heat cycles and chemical exposure degrade the