Just to add something about the microswitch on the tap.
I have managed to replace it! It’s fiddly to replace certainly do it if you’re good with your hands. A good plumber should be able to do it for you otherwise. It took me about an hour to do.
You will need a T8 TX small Allen key. They are the ones with the star shaped heads.
Firstly, the shower WAS working. This proved the pump was okay, and it was the microswitch that was faulty.
This is my tap on 2018, Marco Polo.
Buy a Reich Keramik Style Single Lever Mixer Taps + Spare Parts
www.leisureshopdirect.com
The above leisure shop direct do not seem to have the correct microswitch linked to the tap. The one below is the one you want unless buying the whole tap.
This is the microswitch that worked on my tap. It’s Worth removing the tap head to see if it looks the same it’s a green headed switch with a spring loaded contact on top. There is a version without the spring which will not work. As the spring is effectively the off switch.
Can be used on the Trend E&S and Pelican taps
ukcampingandleisure.co.uk
The part number for the microswitch I used is 240–0622WSK2.
And it’s a ceramic style tap, but I think modified to be used as a cold tap on the Marco Polo. If you’re going to buy a whole new tap online, you may have to carry out the same modification to get it to work so keep the old tap to use the bits.
If you have a different tap, then this may not apply to you, it would only work for the above tap.
It’s a reich keramik tap.
It has been adapted presumably by Westfalia to run as a cold tap.
When replacing the micro switch, you have to make sure you use the components in the original tap. It’s quite fiddly.
This is how it’s done.
To remove the tap first, remove the cutlery drawer and drawer next to the cutlery drawer by pulling the small taps which are on the runners. The drawers should slide out easily then.
Now remove the 10amp fuse From the fuse box underneath the fridge. Do you have to slide the Passenger seats forward to do this. Which is the one that runs the pump? Underneath The hub, you should find the electrical connector for the microswitch which can be pulled apart and unwound from the water pipe. I wasn’t able to remove the spade connectors from the fitting. So instead, I cut the wires and reconnected The new microswitch using small, conventional, screw down electrical fittings Available at any hardware shop.
Once you’ve Unwound the wiring and cut the cable. It’s worth cutting the cable closer to the tap, then you have a little bit More wire spare To reconnect when you’ve fitted the new switch.
Now loosen the Jubilee Clip which holds the water hose In place. You have to loosen it quite a lot to allow the hose to be pulled off the bottom of the tap. Leave the Jubilee clip on the hose to make it easier to refit. So now you should have A black and brown wire and a disconnected water hose. Now remove the Black nut nut which holds the tap in place and the tap should just lift out.
Now, remove the little chrome cover in the middle of the Handle this can be done with a small screwdriver, or the end of a sharp knife. Now you can remove the Hex Allen key, which allows you to see the workings of the lever Underneath.
You will now need a Small T8 (TX) star shaped Allen key to remove the three long bolts which hold the tap mechanism together. It will not work with a conventional Allen key so don’t bother trying.
Once you’ve removed the three bolts, the mechanism will slide out of the housing. This consists of the on off valve for the tap. ,a retaining ring and two blue inserts which hold the retaining ring in place. It’s worth having a good look at it before you remove everything. The on off cartridge/valve has three holes, one for hot, not used one for cold and then the larger hole which is the flow which goes to the tap head. This needs to go back the same way around that it came out.
You should be able to see the impression of the holes when you look inside the tap. So there are two small holes and one large one.
You should now be able to remove the old faulty microswitch and wire. note where it goes. The micro switch works in a reverse way to the way you might Think. When the tap is pulled towards you the switch is engaged in the off position so the spring contact pushes against the switch.
It’s then off. When you pull the the tap handle, the contact on the switch is released and the tap/pump turns on.
So the body of the switch, which sits inside the head of the tap with the spring up against the body of the tap.
The switch spring mechanism presses against the body of the tap in the off position.
So feed the new wires of the new switch through the little hole at the bottom of the tap where the old ones were. Then the switch needs to be pushed through the housing which holds the valve/Cartridge in place. The cartridge, then needs to be pushed back into place. No, the two holes match off the two small holes on the tap body.
The fixing ring, then needs to be put over the top of the cartridge, keeping the wires, surprisingly short as they will need to fit inside the tap head. There is a lug on the ring which goes towards the bottom of the tap.
The two blue inserts can then be pushed into place evenly around the inserted housing. You should be able to then put the three screws back into place. The screws will need a little push With the Allen key to get them down past the top of the fittings. Then you should be able to screw them down and should look as you found it when you first took it apart.
Then refitting the tap is the reverse of removal. It’s a little difficult to get the back nut back on as the rigid feed pipe gets in the way. But wiggle it about and persevere. It can be done.
Make sure you screw up the Jubilee clip very tight as you wouldn’t want water to come out when you turn the tap on.
Then reconnect the brown to the brown and the black to the black Wire. Put the fuse back in. And test the tap.
Check for leaks from the hose and tighten the Jubilee clip if needed.
My next thing for me to do is replace my thermostat on the fridge as the fridge is freezing everything on the lowest setting.
Good luck with the above if you choose to do it yourself.
It would be worth reading this a few times before starting!