Thetford

[Capn zlog]

The flush on the thetford toilet has packed up! I have checked the fuses but no joy! Any suggestions?

 

[Spriddler]

Which model is it?
Does it have the pump in the 'cistern' or is the pump external?
Check with a meter that there is voltage at the pump.
My son's packed up because the pump had seized solid with rust.

 

[HugoBNB]

If it is a PCB. I have just fitted an extraction fan and have the original boards going spare.
Model 263

 

[Lenny HB]

If its fed from the main tank the solenoid its the usual culprit.

 

[Capn zlog]

Which model is it?
Does it have the pump in the 'cistern' or is the pump external?
Check with a meter that there is voltage at the pump.
My son's packed up because the pump had seized solid with rust.

View attachment 521563

Could be it’s a 20 yo van!

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[Capn zlog]

we were away when it packed up, and some of the lights packed up as well. Sorted out the lights with a new fuse , hoping it would also out the flush. Also before it stopped there was a lot of black gunge in the water. The pump must be under the toilet ( above the waste tank) . Is it worth stripping the system down or buying anew system

 

[pappajohn]

Could be it’s a 20 yo van!

Doesn't really help.
Picture of the toilet maybe if you don't know the make/model.

 

[Capn zlog]

This is it, hope it helps

 

[HugoBNB]

Also before it stopped there was a lot black gunge in the water.

This could be congealed residue from the pink flushing agent in the tank. If there is lots of it, that could have clogged your pump up. A half decent bleach solution used to clean our tank out fine when we had the caravan. Probably worth sorting that out before you go replacing any defective parts...

 

[Capn zlog]

Thanks will try that

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[Itsmcb]

The pump is located under the toilet roll holder, on the right as you look at the toilet. Lift out the holder and the inner part and you will see the pump. It's just held in place by 1 screw.

 

[Itsmcb]

There is also a separate fuse
The fuse is located in an area where you pull the cassette out, then look into the upper left area. It's not a blade fuse, it's a cylinder. The fuse holder needs to be unscrewed then the fuse will drop down with the holder.

 

[Capn zlog]

The pump is located under the toilet roll holder, on the right as you look at the toilet. Lift out the holder and the inner part and you will see the pump. It's just held in place by 1 screw.

Many thanks I will try it!