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potterton performa 24 boiler

Discussion in 'Plumbing and Central Heating' started by I'll try all diy, 12 Apr 2016.

  1. I'll try all diy

    I'll try all diy

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    Hi all. I've got a potterton performa 24 boiler. Now the issue is the heating stays on. I turn the main switches to just hot water and the rads still get hot. I thought it was the diverter valve so replaced that but still the problem persists. I then replaced the timer clock (we don't have a thermostat ) hoping it was that but still no joy. .. Am I right in thinking the last option is the pcb board? I've tried all the usual turn it of /reset etc
     
  2. Agile

    Agile

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    Wow, you could have called someone and they would have repaired it for less than you will have spent in spares.

    Its almost certain to be a faulty DHW demand switch.

    Tony
     
  3. DP

    DP

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    Below the temperature lights, there are four lights. Of these, which ones are on?
     
  4. I'll try all diy

    I'll try all diy

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    Dp thank youfor your reply . It has the power on light and the heating light keeps coming in although that's turned of to just hot water.

    Agile I had someone out who said it was the diverter valve but wanted stupid money to replace and the clock was pennies .
     
  5. DP

    DP

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    If the heating light comes on then it will not be the HW switch that is faulty. Are you sure the radiator symbol light comes on?
    You need a heating engineer to look at this one who is clued up
     
  6. Agile

    Agile

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    So you called someone out free of charge to diagnose the fault on your boiler?

    Then you yourself replaced the part he told you was wrong?

    It did not fix the fault !

    I see that as you ripping off the engineer. Maybe he sussed out what you were doing and intentionally told you the wrong part?

    I always charge for diagnosing faults.

    Tony
     
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