Persistent "thumping" sounds

this part is a direct replacement for York S1-02526392003 and York 025-26392-003

While some ignition modules are rated for 208/240V input

making it a versatile differential pressure switch for proving fan operation or monitoring filter status in demanding mechanical environments

and bore (5/16") match

Carrier TT2-001 Test Tube 30067439-890 Persistent "thumping" soundsEnsure system longevity and prevent compressor failure by utilizing the Carrier TT2 001 Test Tube (Blue) for precise refrigerant analysis. These TotalTest replacement tubes are engineered specifically for detecting harmful acid and moisture levels in HVACR systems without the need for messy oil sampling. As a direct replacement for the TT 2001, the TT2 001 is compatible with a wide range of refrigerants, providing dual acid and moisture testing for