water problem

Discussion in 'The Beginner' started by pompeydelboy, Aug 20, 2012.

  1. pompeydelboy

    pompeydelboy Read Only Funster

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    How do I stop the water safety valve from emptying my water tank on my Hymer B544. Just bought this van, its been virtually unused for 5 years . The valve keeps emptying the water tank even though the manual says it does this in low temps to prevent frost damage, it was around 28 degrees here ???:cry:
     
  2. hilldweller

    hilldweller Funster Life Member

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    In the winter we often have to put a clothes peg on the valve to hold it up -- a dangerous bodge but might get you out of trouble 'till you can get it fixed.
     
  3. Reallyretired

    Reallyretired Funster

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    Check your fuses, the valve requires an applied voltage to keep it closed, so for example a flat battery or turning off the main switch will empty the boiler.

    You can cheat by pushing a thin wire into the groove on the stem thus preventing it going down and opening the valve, however it is a safety feature and a boiler that freezes will cost serious money to repair/replace.
     
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