Replacing the Pressure Switch of a Sterwins Booster Pump (900W, 19L, 3800 L/H)

Identification of the Pressure Switch

Using a flat screwdriver, unscrew the screw indicated by the arrow.

Remove the protective cover.

Unscrew the pressure switch connection nut using a 19 spanner.

Unscrew the screw that holds the blue wire (neutral) using a Phillips screwdriver.

Then unscrew the screw that holds the brown wire (phase).

Unscrew the screw holding the yellow-green (grounding) wire.

Loosen the cable tie.

Next, remove all of the wires from the motor.

Unscrew the screw that holds the blue (neutral) wire, using a Phillips screwdriver.

Then, unscrew the screw that holds the brown wire (phase).

Unscrew the screw that holds the yellow-green wire (grounding).

Insert the power cord into the pressure switch

Tighten the screw that holds the yellow-green (grounding) wire.

Tighten the screw that holds the blue wire (neutral)

Tighten the screw that holds the brown wire (phase)

Tighten the cable tie.

Insert the motor power cable.

Tighten the screw that holds the yellow-green (grounding) wire.

Tighten the screw that holds the blue wire (neutral)

Revisser la vis qui maintient le fil marron (phase)

Tighten the cable tie.

Position the pressure switch and screw it back in by hand. Then tighten it with the spanner size 19.

Mount the protective cover and retighten the fixing screw with the flat screwdriver.