Thelford Electic Flush

Mar 20, 2011
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I have a problem with the flush continuously going on the WC? Can anyone advise what the problem is. For the moment I have removed the fuse which is located in the WC compartment. Kind Regards Annie
 
Mar 17, 2007
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Hello Annie, try carefully removing the foil sticky cover on the rop of the loo. Do it carefully so you an re- use it. You will ow see the PC board beneath it. Carefully unclimbed the pub and remove the plug at the rop left of the board. Wipe the pcb very carefully with a lint free cloth making sure that any moisture is removed. Spray the plug with a drop of electrical contact cleaner, then re assemble. I have to say that I think this loo flushing arrangement is the most Iill thought of piece of electrical design / engineering ever to get to market - bad even by caravan standards.
 
Jan 19, 2002
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Try this link which was on the Thetford website - always worth a visit if you have problems - https://www.youtube.com/watch?v=YBNAv-n8ghQ&feature=youtu.be
Shows you how to get at the pcb under the facia.
Also worth checking that he small pcb at the back of the cassette space is dry - simpler to access than the fluch control.
Good luck
 
Feb 9, 2009
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I had a problem with the red full light being on all the time and at last months service the dealer found that a wire was rusted and replaced the wire plus at my request the circuit board and reed and all was well for the first 3 weeks we were away. On the fourth week the toilet started to flush by itself. Luck was with us as we were in and stopped it overflowing by turning off the master switch. This happened twice.
The van is going back to the dealers tomorrow to find out what is wrong.
I will let you know what the dealer says
 
Mar 14, 2005
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Why do they need a pcb when a simple fused supply to a pushbutton would seem to be all that is required ?
Could it be that the current generation of 'designers' have been educated that 'complicated is cool' and not 'kiss' ( keep it simple, stupid) or more politely 'what isn't there can't go wrong'
 

Damian

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Mar 14, 2005
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Having been a mobile engineer for a lot of years there are, in my opinion, many so called "improvements" which have, and are, detrimental to caravanning, and add extra unnecessary cost to the owner.
 
First are the One Shot hub nuts.
The old system of castellated nuts and split pins was a low cost but very good system and allowed for wear to be adjusted out and apart from a bit of grease (and a lot of paper towelling to clean off old grease) was a much superior system with no ridiculous charges for the nuts (which should not be charged as extras as the service cannot be done without replacing them).
 
Then the fixed bulkhead regulator.
The old style cylinder mounted unit was (and is) a single stage regulator which worked very well for a long time.
Ok, it let the oily substance we all know about into the pipework but it took years to present itself as a problem, unlike the bulkhead regulator which I have changed hundreds of due to blocking, and at considerable cost to the van owners.
 
Then there is the multitude of electronically controlled items from fridges to heating systems which are far too complicated and sensitive to be dragged around over bumpy roads for miles and miles.
 
Simple controls are much better on the bank balance.
 
Do you "really" need to control the heating etc from your smartphone? or have the heating so minutely controlled every second of the day and night? or have a fridge decide what fuel source is used? Do you "really" need a red light to tell you when the cassette is full?
 
On  a personal note I think that people actually want to transport all the high tech stuff they have at home, despite it being subjected to stresses and strains that it is not supposed to be, like vastly changing temperatures, damp air conditions and vibration.
 
I think that a lot of people rely far too much on being told what to do by electronics and have lost the ability to do simple things.

Some things are a good improvement, such as the stabilising hitch head and ATC but that is a small number.
 
Apr 7, 2008
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WoodlandsCamper said:
Damian-Moderator said:
 Do you "really" need a red light to tell you when the cassette is full?

YES, definitely. :sick:

Nope it's quite easy to see the level of substances with the blade is open... :evil: :whistle: . last time i saw our red light on was about seven years ago . ....
On another note i do love our old type fridge switches for manual selection
 
Mar 14, 2005
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Further to Damian's comment,

As damian has stated the number of things that now have complicated controls when a simple manual system works very well, is also complicated further when the Caravan industry does not take the standard domestic controls, but tries to engineer its own bespoke units. All to often they don't take heed of the lessons learnt in the normal domestic market, and make the same costly and over engineered mistakes all again.
 
Mar 14, 2005
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Damien is quite right about regulators fixed to bulk head problems. In addition to the contamination problem thisarrangement is inherently less safe that the old way, as it allow high pressure gas into a flexible pipe having two screw type joints. Many of the older fixed to bottle regulators had a flow restriction in the outlet such that if the delivery pipe was damaged the flow of gas emitted was restricted.
The present set up would never have passed a chemical industry HAZOP - perhaps after Brexit we can go back to our older and safer arrangement.
 

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