This often indicates a fouled seat disc or a cracked float

Common Questions Does this kit work with the GV90+ series

When replacing standard gas furnace burner parts

If the switch remains open (infinite resistance) while cool

the sensor should read 12

System Sensor EPS40-1 Pressure Control Els PW 17895 This often indicates a fouledThe System Sensor EPS40 1 is a heavy duty low pressure supervisory pressure switch engineered specifically for dry pipe fire sprinkler systems, pressure tanks, and automatic water control valve supplies. This professional grade supervisory pressure switch features a field adjustable range from 10 to 100 PSI, factory preset to activate at 30 PSI on decreasing pressure to alert teams of critical system pressure drops. Built with a NEMA 4 rated