York S1-024-39716-000 Pressure Switch L99H008 It features a heavy-duty 700

It features a heavy-duty 700 style bulb and bronze thermostat material connected via a 10-foot capillary length

professionally identified as the FSE-1/2-Z-3X4SAE

While the P170MA-1 is rated up to 500 psi

erratic temperature spikes

If the furnace inducer runs but the burners fail to ignite

York S1-024-39716-000 Pressure Switch L99H008 It features a heavy-duty 700Maintain precise combustion control and system safety with the York S1 024 39716 000 Pressure Switch. This genuine OEM replacement part is factory calibrated to a 0. 20" WC (Water Column) set point, specifically engineered for induced draft furnace draft monitoring. As a critical safety interlock, it verifies that the combustion blower is moving sufficient air to exhaust flue gases before allowing the ignition sequence to proceed. It is a direct fit