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Recent content by inwithbricks

  1. I

    Vaillant ecoMAX 828

    my old boiler is playing up ( 4 years old ) THE UNIT has a F 25 fault when the boiler switches off on low temp but if you leave it on its ok.
  2. I

    Replacing a Vaillant timer

    this can be done as i have had it done you must folow the instructions in the installation manual as the timer will have to be put on a wall remotelly and the 7 day timer will aso have to have a temp control on it ( be carful and folow the warnings as there is a chance of blowing all the...
  3. I

    Vaillant ecoMAX 828

    Hi I have a problem with this unit. The resents cold weather has up set it as the unit seems to losses pressure over night (with code F.25 )only if the temperature is lowered by 5 degrees i.e if the unit remains switched on at 20 degrees all is fine but if you lower the temperature over...
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