Pressure Switch 105/140 Mdr11 CW212201AV-S

This genuine replacement pressure switch is designed for Campbell Hausfeld air compressors. It is sourced directly from original equipment manufacturer and it is sold individually. The purpose of a pressure switch is to control when the compressor should start and stop building up pressure. If it is leaking air the pressure switch should be replaced for a compressor to operate as intended. The default setting of this pressure switch are 105psi on and 140psi off. To complete this repair you will need a wrench set, a nut driver set and a thread-sealing tape. • Shut off the electricity and drain the air tank • Remove the tank pressure gauge • Remove the pressure switch tube • Remove the pressure regulator assembly • Disconnect the wires • Remove the safety valve • Install the new pressure switch • Reinstall the safety valve • Connect the wires • Reinstall the pressure switch tube • Screw the pressure gauge onto the new pressure switch and tighten the gauge firmly • Test the air compressor