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Turbomax 242 cutting-off

Discussion in 'Plumbing and Central Heating' started by kanesh, 6 Nov 2015.

  1. kanesh

    kanesh

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    The pump and diverter valve were recently changed on our Vaillant Turbomax 242 (black panel with green dial). Since then the boiler will cut-off several times a day. Once cut-off, it will often take about 15 minutes before we can reset the boiler – perhaps the boiler needs to cool down. Also, we notice the water temperature fluctuating slightly. The secondary heat exchange is reasonably clean - just very few small rust particles came out when I was cleaning it. Any suggestion on the cause of the problem.
     
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  3. Agile

    Agile

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    It would need a thermal survey to pin point the exact cause of the malfunction.

    Who diagnosed and replaced the pump and diverter?

    Tony
     
  4. kanesh

    kanesh

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    Thank you Tony. A local engineer, Terry, diagnosed and replaced the pump and diverter. He has been repairing my boiler for the last 15 years. BTW, I believe he used to work for Vaillant. However, when I reported that the boiler keep cutting-off, Terry asked me to look for another engineer and also suggested that I perform a power flush.

    Kanesh
     
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