When removing the on/off switch of the compressor, you will first need to remove the shroud. The trick to removing the on/off switch is on the underside of the shroud. This is discussed in the guide.
Unscrew the four 1cm long shroud screws using a 6mm Allen Wrench.
Remove the plastic shroud from the compressor.
Gently pull the wire attached from the pressure switch to the on/off switch.
It should come off the pressure switch with ease.
Gently pull the wire connected from the on/off switch to the motor of the compressor.
Twist the On/Off switch from the underside of the shroud.
Twist 90 degrees in any direction or until the on/off switch prongs are in a vertical position.
Push the on/off switch from the underside of the shroud until it comes loose.