Ensure the 1/4" barb connection is free of debris and that the silicone tubing is pushed fully onto the port to prevent false pressure readings

preventing localized flooding and protecting the backflow preventer from submersion

making it suitable for most mechanical room environments

Direct OEM Replacement: Fully compatible with Nordyne

ensuring root cause diagnosis before operation resumes

York S1-024-19082-031 Sequencer Relay Els PW 17895 Ensure the 1/4" barb connectionFor field technicians and contractors maintaining York air handlers and electric furnaces, the York S1 024 19082 031 Sequencer Relay is a vital component for staged heating control. This 24V heat sequencer, frequently cross referenced as 208V42, manages the timing of resistive heating elements to prevent high amperage inrush from tripping circuit breakers. Built with a robust bimetal heater coil, this relay provides a consistent timing sequence of 1