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Ideal classic ff240 problems

Discussion in 'Plumbing and Central Heating' started by greenc, 24 Nov 2009.

  1. greenc

    greenc

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    Location:
    Lincolnshire
    Country:
    United Kingdom
    A mate of mine has a problem with his ideal classic ff240 boiler it fires up ok on demand for either DHW or CH although after approx 2 mins the boiler switches its self off and won't restart for a good 5 minutes. Every thing else seems to be working fine ie pump/motorised valve. The flow is starting to heat up prior to the boiler shutting down. Its a sealed heating system and the pressure was about 0.75 bar and when i increased the pressure it shot round to 2.5 bar quicker than you could blink which seemed a bit odd to me. Has anybody got any ideas before calling anybody round.
     
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  3. assured heating

    assured heating

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    Location:
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    Try increase the pressure to about 1.5 bar and bleed all the rads make sure the pressure is still correct then try
     
  4. kevindgas

    kevindgas

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    sounds like a pump problem. probably not rotating fast enough due to wear / crud
    the pressure is a red herring as the boiler will still work at zero as there is no pressure switch as it is a heat only boiler or a system boiler if the pressure vessel is on top in a similar box to the boiler
     
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