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Boiler popping all the time

edited 30 November -1 at 1:00AM in In my home (includes DIY) MoneySaving
5 replies 455 views
davidmt83davidmt83 Forumite
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Hi,

Is it normal for a combi boiler to rev up a bit, you hear a popping noise (expansion vessel I guess) then it ticks over, and repeats every 3 - 4 minutes? Getting a bit bored of the popping noise to be honest.

New boiler, Potterton Promax in a new build.

Thanks

Replies

  • davidmt83davidmt83 Forumite
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    Just skimming through the manual and...
    1. With a demand for heating or hot water, the pump
    circulates water through the primary circuit. If the pressure is
    at least 0.5 bar and the ignition sequence will start.

    2. When the flow temperature exceeds the setting
    temperature, a 3 minute delay occurs before the burner
    relights automatically (anti-cycling). The pump continues to
    run during this period.

    3. When the demand is satisfied the burner is extinguished
    and the pump continues to run for a period of 3 minutes
    (Pump Overrun)

    I don't fully understand the above but I'm guessing it's working as designed?
  • davidmt83davidmt83 Forumite
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    Anyone? Can I change the boiler temperature to alter this? Should you be able to hear the expansion valve pop every 3 minutes?

    Thanks
  • another_casualtyanother_casualty Forumite
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    Possible issue with the boiler pressure?
    Have you tried resetting it ?
    Too many people ..too many problems .  I Step away from the news, media and oppression as much as possible ( and adverts!) and realise that my life matters ,and maybe life is not crap .
  • Norman_CastleNorman_Castle Forumite
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    Is it normal for a combi boiler to rev up a bit, you hear a popping noise
    Is the revving up the exhaust fan starting then the popping the gas being ignited?
    I'm not a cat.

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  • davidmt83davidmt83 Forumite
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    Possibly, it's every 3 minutes definitely, which does tie in with that quote from the manual above
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