westy water tank level gauge

[Shaundon]

My westy water tank has several metal connectors sticking out that are supposed to be connected to the control panel on the fridge. Trouble is theres nothing connecting them at the moment! Does anyone have a wiring diagram or know how to connect them so i can read the water level?

image of connector on tank

S.

[pirate-pete]

You are missing one of these which connects to those contacts.



Am trying to find a circuit diagram I sketched out on the back of an envelope somewhere but inside all that resin I think were just a couple of resistors so should be easy to replicate. This then connects to the control panel. Will post back if I can find my diagram. Worth pointing out you and me have the earlier type of sensor. Later vans have a reed switch with floating bits which is immersed in the tank. Ours is much simpler and just lights up the relevant led depending which contacts are covered by water.

[pirate-pete]

Still not found that envelope but found this link I posted this to brick yard forum

http://www.brick-yard.co.uk/forum/t3-ea ... 83294.html

[Shaundon]

just checked and i have exactly that but its not connected to anything!

also if that connects to the tank , how does it connect to the control panel?
and why is the black wire going nowhere?

here's my control panel and it does have green yellow and red wires on its connector but the yellow is looped to the orange and by the look of the soldering it may have been messed about with at some point...



if you can find the circuit diagram that would be great.

Thanks

[Shaundon]

sorry posted that before i saw your second posting...
reading brickyard link now

[Shaundon]

ok - think i understand the circuit now

colours into the control panel seem different from the westfalia wiring diagram though - perhaps they are same inside the van wiring
will check when next in van

thanks pete

[pirate-pete]

Not sure if you have the wiring diagram linked to from here http://www.brick-yard.co.uk/forum/westf ... 20766.html

If not it will help in everything you are doing. If you look at column 34 you can see the two resistors with one end connected to the green at the control panel and it looks like the top contact on the tank. The yellow and the white will go the middle two of the tank connectors and there is a further contact in the bottom of the tank which gets earthed by a brown. On mine I don't think the black went anywhere. I reckon to work out the where to fit the others, connect a meter to the green and measure resistance to the yellow and the white in turn. Whichever is the lower resistance then that should be the for the middle sensor.

If the tank is full the water will short out the resistors between the green wire and the bottom contact. The control panel circuit senses this and lights up the green led. If half full, the top contact will not be covered by water so one resistor will be in circuit between the green wire and the earth and the control lights up the yellow led. If nearly empty then both resistors are in circuit and the red led lights up.



Going back to the other wires coming from your control panel the grey cable will heat up the deicer on the gas regulator. You will see that clipped onto the gas line near the tank. That is fed from the switch J6 on the control panel and the deicer is in column 33 of the diagram. The brown and white wire in column 24 is for the fridge on gasindicator and lights up when a flame is sensed at the burner. Brown connector at col 25 is earth for the control panel circuitry. The red at col 26 is the 12v feed and this is linked to the red and white wire to the tap in col 35. That link I reckon will be the yellow you see in your photo. Would the bit that is wrapped in tape be a fuse or is that the bit that has been bodged.

Note the colours I mention above are for the harness wire at the 6 pin connector and they look different to the other half of the connector attached to the control panel as shown in your photo. I think some vans may not have the de-icer so does your control panel have two switches or just the one?

Do you have the harness part still in your van or is that another bit you are missing? Ignore that bit - just seen your reply.

[Shaundon]

Thats brilliant pete , was a little confused by the different colours inside the control panel as havent got the van here to check colours on the harness. (have removed the tank and furniture for some renovation work)

Harness is still inside the van , I have two switches and that is a fuse. I reckon if i connect all this up as your description then it may just all work!
I also noticed a loose brown wire down by the tank which i reckon must be the earth connection.

Originally thought it was bodged as was looking at the soldering from 1984 compared to the latest machine soldering from 2014 circuits made it look rather amateur but i guess thats just the way they did it then.

Thanks again,
S.

[pirate-pete]

The soldering is normal - I had to resolder the wires on mine as otherwise the leds would flicker or else I had to press on front panel to get them to light.

Picture here of some of the wiring - unfortunately seems I had the resistor module out at the time. Think it just screws or bolts to the cabinet wall. That clear connector to the blue/brown flex is the one labelled S11 in the wiring diagram and the flex is for the water pump. You can see the brown at from this leads down to join with the brown to the bottom tank contact.

[The Bobdogs]

This help??

[Shaundon]

cheers - gonna be a week or so before i can try and reassemble the furniture and tank as its all out for some welding work.

water was leaking out the tank filler tube and in through the hookup point which caused rust behind the tank/ furniture. I'd advise anyone that hasnt looked behind there in a while to look and make sure theres no nasty surprises lurking.

will let you know when i do how the wiring goes.

[Shaundon]

Well got it all back in and wired up and they work!!!

Thanks guys for the help...

Although the battery level and fridge on gas led's are very dim!?
Would adjusting the variable resistor on the panel alter brightness or is that just to adjust the voltage for the comparitors.

[richlaz]

I'm in the process of converting my Sport Joker into a Joker, fitting k1tchen unit, water tank (when I obtain one) etc. But I don't have the panel to go in the centre of the k1tchen unit (like rocking horse sh**... Never seen one for sale!?), therefore I'll probably end up wiring the water level sensors from scratch and making up a panel - looks quite complicated

Don't quite understand how it works with just one wire on each sensor... (and two on the top?)

The fridge on gas LED I may incorporate into the panel, but for the battery levels, I got a couple of digital voltage displays which I will fit, along with a switch because they're a bit too bright to be on permanently