micro switch?

TAPS ONLY:
 Microswitches
If you look under a sink or washbasin and see two wires coming from the taps, these are almost certainly connected to a microswitch. If you disconnect the wires and join them together, the pump should start working because the switch has merely been bypassed. Damp can cause the downfall of a microswitch and in some instances the whole tap has to be replaced. In most cases, however, the switch can be changed. Fitting a microswitch is usually easy; the hardest part is access. Space is tight under a caravan sink. Whale’s Elite taps overcome this because the switch is reached from above; you merely prise out the coloured hot/cold plug and remove the operating lever to reveal the microswitch. From my caravan club file.

Bob
March 2009