Potterton Suprima 30- problems locking out constantly

Discussion in 'Plumbing and Central Heating' started by Antigua, 2 Apr 2009.

  1. Antigua

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    Hi. I've just had a new PCB fitted and now when the demand is on for either the hot water or heating (or both) the boiler will fire up and get warm, it usually takes about 30 minutes, and then it will cut out- the green light will flash constantly-before the red light comes on, the boiler will temporarily knock off, and then reignite if the demand is on. The boiler will then work for approx 4 minutes, before the green light starts to flash again, then the red light will come on, then it will reignite and come on again for 4 minutes and so on.

    I have also noticed that I can hear fast flowing water in/around the boiler and before all the problems with the PCB I never heard water before, or had the cut out problem.

    I've had a BG engineer out to investigate who says there's nothing wrong and its normal to go on and off so frequently, but I'm not convinced? :(
     
  2. kevindgas

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    as usual BG is talking bllx

    you have a problem.

    get them back
     
  3. Antigua

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    Any ideas on what it could be? It's driving me insane!
     
  4. BingoBongo

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    flashing orange and green is air proving and ignition

    the new pcb differs from the old 1.1 led insted of 2

    the boiler will lockout now whenever the temp of the overheat stat is reached.

    the requirements for a bypass must be met

    3port valve "y plan" no bypass req

    2 2ports "s plan" 4 m of 22mm pipe

    Full trv system - 2m of 22mm pipe

    thermistor fault-red every 5 secs
    wiring harness-red/orange 3 times a sec
    false flame-red orange every 5 sec
    aps-red 3 times a sec
    pcb-solid red
    ignition/lockout-flashing red every second

    (My LuCky NuMbers)
     
  5. Agile

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    But, just like British Gas, dont expect the PCB to get it right every time!
     
  6. bengasman

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    Has it always done this? If not, then it is clearly not normal.

    If it is a real lock-out as opposed to temperature satisfaction, that in itself is also proof it is not normal as a lock-out is safety system that engages when conditions go beyond normal.

    As advised above: get them back and keep getting them back until the system performs correctly. You paid to get your boiler fully fixed, not for someone to run some experiments.
     

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