Technicians should replace the drier whenever the refrigerant circuit is opened for repair or if a temperature drop across the drier exceeds 2-3°F

check the internal blower wheel and motor separately to ensure a complete repair

For technicians performing furnace repair or routine service

specifically calibrated for 5-ton evaporator coils

significantly reducing its ability to hold water and humidify the air

Reznor 193811 Pressure Switch 326058-758 Technicians should replace the drierThe Reznor 193811 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air and venting pressures in commercial and industrial heating systems. As a genuine Reznor OEM pressure switch, it features a Single Pole Double Throw (SPDT) configuration, allowing for versatile control of both normally open and normally closed circuits depending on the system's differential requirements. This specific model is equipped