The Mitsubishi Pajero Owners Club®

[Scotsbob]

Actually sounds more like a air-lock now....just done my neighbours tonight (it is late now ) and after bleeding it...it worked fine...i did have to re-adjust the pressure switch tho, just a knob you turn on the main inlet pipe.....the switch is on that, it sticks if left over winter.....but defo try the air-lock first.....just unscrew the drain plug till water runs out, you will prolly hear the air hissing too.....you may need to do it twice .

                  SB.

[Google]

[wulliedey]

the micro swich is fitted inside the tap it switches on when you turn on and off tap.i wired my old van to a switch and put it next to tap.i left the tap on all the time and when she used the hot water she just pressed the switch to work the tap it worked on and off perfect  great.  cost me £1.50 instead of paying silly price and fitting a new tap.i hope this helps you.