thetford c4 toilet clubman gl 1993

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Post by len foster on Sun Jul 02, 2017 7:29 pm

pump not working have removed toilet roll holder and found loads of red flushing stuff below scratch head  confused3
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Post by meanchris on Sun Jul 02, 2017 7:51 pm

len foster wrote:pump not working have removed toilet roll holder and found loads of red flushing stuff below scratch head  confused3

The way I'd check this would be firstly:

With the van on battery/12V only, put a couple of internal lights on and then press the flush button. If the lights flicker or go slightly dimmer, then the pump has a supply and is most likely jammed. It can be (temporarily) freed up by removing it from the tank and gently turning the impeller from underneath.

If the lights do NOT appear to dim when the flush is pressed, then it's likely that there's a problem with the 12V supply to the pump, either the switch, a fuse, or a poor connection somewhere.
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Post by len foster on Mon Jul 03, 2017 8:36 am

thanks for that where is the pump situated please
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Post by meanchris on Mon Jul 03, 2017 9:49 am

You should try the 'do the light dim when I press the flush knob' test first.

Slightly confusingly, I read that the C4 toilet has a manual flush, not electric, are you sure it's a C4?

Anyway, the flush pump should be accessible inside the toilet roll holder compartment.
On our C200, if you look down at the toilet from in front of it, the toilet roll holder is the round compartment on the right.
Remove the roll holder, then pull up on the edges of the cylindrical compartment to release the cylinder from its hole in the toilet moulding. It's held in by an 'O' ring around the top which might need some persuasion.

Once out, you're looking down into the flush tank through the hole.
The pump (on ours) is slightly to the left of the hole deep inside the tank, possibly covered in water/fluid in your case.
You can empty the fluid out into a container via the sight tube in the cassette compartment (if it's like ours), by pulling the sight tube out of its holder, pointing it downwards, and pulling out the bung in the end of the tube.

Once you have emptied the flush tank, you should be able to see the top of the pump, with its 12V wire exiting from the top.
It's held in place by a single self tapping screw in the plastic bracket at its base, where it sits on the toilet moulding.

I use a magnetic tipped screwdriver to release and pick up the screw (and put it somewhere safe), then you can lift the pump and bracket out through the hole in the toilet moulding where the roll holder went.
As long as AS have left enough wire in the tank, you should be able to rotate the pump and look at the impeller on the bottom while it's still connected.

I put a thin screwdriver into the impeller and gently tried to turn it, finding that it was initially stuck but then, once freed, it would turn pretty easily.

You can then try the pump by pressing the flush knob to see whether the pump runs. If it does, reassemble in the reverse order.

The pump on our old Exec kept jamming regularly, any time it was left with fluid in the tank for more than a few days without being used, so you may have to replace the pump if it annoys you.
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Post by len foster on Mon Jul 03, 2017 4:33 pm

thanks to Meanchris for advice have now got working toilet it is a c2 (found label),with electric pump impeller was stuck causing fuse to blow. fuse is housed in threaded cap inside top of cassette compartment easy to remove fiddly to replace smile! up!
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Post by meanchris on Mon Jul 03, 2017 4:59 pm

Great news.

This seems to be quite common and caused by the pink flush liquid when left in situ for any length of time.

The slightly bad news is that the old pump is obsolete, and the replacement is slightly smaller diameter, requiring packing to locate it into the old bracket.

This doesn't mean that I'm able to persuade SWMBO not to use the pink flush liquid though. hugegrins
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Post by len foster on Wed Jul 05, 2017 11:24 am

one more thing the pump is submersible (hence the red puddle in fact a reservoir) spent ages soaking it up with sponge then had to refill again confused3 when fuse replaced
the pump has no wiring scratch head only two water pipes
so there must be a second pump lurking around some where in the depths scratch head scratch head scratch head
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Post by len foster on Wed Jul 05, 2017 11:27 am

SWMBO?
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Post by meanchris on Wed Jul 05, 2017 9:39 pm

She Who Must Be Obeyed.
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