Thetford electric flush update

Discussion in 'Motorhome Chat' started by dru, Feb 21, 2014.

  1. dru

    dru Read Only Funster

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    Hi guys, me again, now have 12.4 volts at one side of the flush switch and the same at the output side of the Thetford c-200 cs toilet - also filled the on board water tank and have water coming from all taps hot and cold but still no flush when the flush switch is pressed - it was suggested the electric valve in the toilet may be stuck but have no idea where it is located or worse still how to take the toilet apart to look for it - I thought the swivel bowl may have lifted off but reluctant to pull and haul at it and maybe break something. Any help on how to access the electric valve would be much appreciated, thanks, dru
    ps disappointed to find the colours of the wires on the Thetford diagram for the flush switch are different to the colours on ours :Eeek:
     
  2. mitzimad

    mitzimad Funster

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    you should be able to get to it from where ever you pull the tank out from theres a solenoid valve on the water pipe that leads up to the nozzle it flushes fromshould be around 12v on this when you press the flush button if there is and its not flushing it either stuck or broken
     
  3. Geordie and the Dragon

    Geordie and the Dragon Funster

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    We have just bought a new control panel board for our Thetford 250 for just short of £80 now we have Lights, Flush but the Slide won't open, oh the joys of motor homing.

    Speak to www.leisureshopdirect.com they will probably point you in the right direction.
     
  4. icantremember

    icantremember Funster

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    We had a similar problem some time back ........ the flush button had been pressed slightly too hard forcing the circuit board behind the button to come adrift and just needed pushing back into place.
     
  5. enery8

    enery8 Funster

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    You might find this link useful, hope it helps.
    I phoned Thetford re a problem I had and they sent me a manual on how to fix it. Might be worth a try.
    Good luck with it.:Smile:
     
  6. dru

    dru Read Only Funster

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    flush probs

    Thanks enery8 for that link - there is one section specific to removing the elec valve - not too specific but looks as if there is enough info to point me in the right direction to remove the bowl and valve, thanks, much appreciated, dru :thumb: ps GM4SCP
     
    Last edited: Feb 21, 2014
  7. JockandRita

    JockandRita Funster Life Member

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    Our solenoid valve suffered from frost damage, and had to be replaced. :Sad:
    It's a pig of a job, and involves removal of the mechanical linkeages and clamps, before lifting the bowl from it's plinth. The valve is on the underside of the bowl.
    Access to the screws is gained by removing the cassette, and with the aid of a mirror, working in the tight confines of the cassette compartment. If it needs replacing, the solenoid valve cost about £30-£35.

    Good luck. :thumb:

    Jock.

    P.S. If it's a second hand hand MH, wear disposable gloves before removing the bowl. You may well get a surprise, :Wink: or a shock. :Eek!:
     
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  8. TheBig1

    TheBig1 Funster Life Member

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    yes its a pig of a job to replace the valve. i often wonder if the designers of such devices expect everyone to be a contortionist or a gynaecologist

    as already said on the other thread, find the valve by following the water pipe then give it a few taps with a screwdriver handle whilst somebody presses the button. this often works to free a stuck valve.
     
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  9. JockandRita

    JockandRita Funster Life Member

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    Ours was beyond the "preferred" few taps with a srewdriver handle, as it just kept syphoning the contents of the fresh water tank. :Laughing: We were on a FUN meet at Scunthorpe at the time, and I had to shove paper tissue into the discharge pipe to block the trickle.

    Cheers,

    Jock.
     
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