The McDonnell & Miller 302600 Head Gasket

Common signs include a motor "humming" but failing to start

or oxidation at the 11/32-32 male nut connection

drawing minimal current while maintaining high holding force

8 mA nominal current draw to reduce control board strain

York S1-025-41047-000 Temp Control The McDonnell & Miller 302600The York S1 025 41047 000 Temp Control is a precision engineered SPST temp control switch designed for critical thermal monitoring in residential and light commercial HVAC applications. This HVAC temperature control switch is calibrated with fixed setpoints of 55Op 45Cl, meaning the contacts are programmed to open at 55F and close at 45F. As a York replacement part, it functions as a reliable safety or limit interface, frequently utilized for freeze