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Subject Topic: Thetford C250 toilet Post Reply Post New Topic
via mobile 10/8/2022 at 5:40pm
 Location: West Midlands
 Outfit: Eldiss jetstream
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I went to check on my caravan today only to find the toilet flush was going even though there was no power to it. (12v power off). I pressed the flush button on the top and it stopped, but now it will not flush. I have checked fuse which is ok and now have no idea why it won't work. Any ideas please?

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Life is not measured by breaths taken but how many times our breath is taken away


10/8/2022 at 7:19pm
 Location: Lichfield
 Outfit: Coachman Amara 450
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As you went to your caravan and found that the 12 volt power switch was switched off but the toilet flush was functioning proves that there was power to it which means there is a leisure battery connected up. The battery was obviously left for a period of time before checking on your caravan so it could be that the battery is now flat thus why the toilet flush fails to operate. Even with a flat battery the fuse will still be okay.


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via mobile 10/8/2022 at 8:12pm
 Location: West Midlands
 Outfit: Eldiss jetstream
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The battery isn't flat, and the battery was switched off at the fuse box. When this is done the only thing that normally draws power from the battery is the alarm, nothing else works until fuse box is switched on and then the main power switch above the door.

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Life is not measured by breaths taken but how many times our breath is taken away


11/8/2022 at 1:55pm
 Location: Near Alton Towers
 Outfit: Bailey Burgundy S7 H
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The switch pad assemblies are notorious for getting water behind the touch pad membrane and upsetting or corroding both the switch and plug connections to the PCB on that and similar models. I would be tempted to have a look.

Dave

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Give a man a fish and he will eat for a day,
Teach a man to fish and you can get rid of him for a whole weekend.


12/8/2022 at 9:17am
 Location: Milton Keynes
 Outfit: 2023Archway Woodford
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The toilet has a permanent 12 volt feed even if you have the system shut down. This is so it can still be used if needed whilst on a journey without switching everything back on. The circuit board is quite a common problem with damp as it is mounted inside top of tank.If you can dry it out or have to replace it waterproof it before fitting.
Use this to waterproofhttp://www.ebay.co.uk/itm/AG-PVB-Varnish-60-Transparent-Prevent-PCBs-Against-Corro........

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2023 Swift Archway Woodford, MK3 Kuga ST Line X 190 ps AWD Auto
Now 52 years Caravanning completed.


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12/8/2022 at 4:11pm
 Location: 
 Outfit: 
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Quote: Originally posted by birdman101 on 12/8/2022
The toilet has a permanent 12 volt feed even if you have the system shut down. This is so it can still be used if needed whilst on a journey without switching everything back on.



This must be just whilst hooked to the car. Because on its own, mine will not operate unless the 12v is switched on.


via mobile 12/8/2022 at 7:47pm
 Location: Milton Keynes
 Outfit: 2023Archway Woodford
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We have had all makes of caravan over the years and 3 with the 250 toilet being Elddis, Bailey and present Swift and all have worked whilst stood in the garden not connected up to any external supply and consumer unit off

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2023 Swift Archway Woodford, MK3 Kuga ST Line X 190 ps AWD Auto
Now 52 years Caravanning completed.


12/8/2022 at 9:09pm
 Location: Warwickshire
 Outfit: Gobur Clubman
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We were away last year and our thetford toilet flush stopped working, the impeller was seized even though I had it going two days before, I removed the impeller from the base but left the wires connected, placed it in a bowel of boiling water for a few minutes, pressed the flush a few times and it freed the impeller, however the fuse in the toilet cassette cupboard blew so I replaced that and everything was fine


via mobile 12/8/2022 at 9:29pm
 Location: West Midlands
 Outfit: Eldiss jetstream
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All sorted now, not sure what was wrong but after waggling a few wires and cleaning a few connections it's back up and running again! Thanks everyone

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Life is not measured by breaths taken but how many times our breath is taken away


12/8/2022 at 11:22pm
 Location: Near Alton Towers
 Outfit: Bailey Burgundy S7 H
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So glad you got it fixed and cheaply too, also, thank you for returning with feedback to let us all know the outcome.

Dave.

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Give a man a fish and he will eat for a day,
Teach a man to fish and you can get rid of him for a whole weekend.


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13/8/2022 at 9:03am
 Location: 
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Quote: Originally posted by birdman101 on 12/8/2022
We have had all makes of caravan over the years and 3 with the 250 toilet being Elddis, Bailey and present Swift and all have worked whilst stood in the garden not connected up to any external supply and consumer unit off



Fair enough. Though if you think about being laid up in storage for weeks/months, you usually want NOTHING 'live' of any sort to prevent battery drain. Maybe its a newer thing, or maybe mines wired different, or even wrong. But no 12v, no loo!



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