If voltage is present but the load terminals fail to show continuity within the specified timing window—usually 1 to 110 seconds—the internal heater or bimetal disc has failed

which must be purchased separately

this permanent split capacitor (PSC) motor features a 3-speed configuration allowing for precise airflow adjustment across heating and cooling cycles

OEM Compatibility: Specifically designed as a direct replacement TXV for Carrier 50BA and 40RT units

this assembly is the factory-designated replacement for several legacy part numbers

York S1-024-35778-000 Pressure Switch 319852-301 If voltage is present butThe York S1 024 35778 000 Pressure Switch is a critical safety component designed for precise monitoring of inducer blower performance in high efficiency furnace systems. Calibrated at a . 6" WC set point, this OEM HVAC air pressure switch ensures that the draft inducer is exhausting combustion gases correctly before the ignition sequence initiates. For service technicians, identifying a failing switch often involves troubleshooting lockout codes