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Ariston e combi

Heating works fine but hot water doesn't. It might run hot for 30 seconds at a time and then runs cold. Is this a known fault with this sort of boiler or does it need a repair? The boiler was installed in July 2010 and the house had been empty for about 12 months before I bought it.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Combi Boiler - Running warm & then cold!? HELP!

the problem was solved on my system by replacing thermostatic valve on shower and putting non return valves on hot and cold feed to shower . the problem was caused by cold water getting into the hot water line through the shower hope this helps

Posted on Dec 30, 2008

gary1121
  • 332 Answers

SOURCE: a trickle of hot water from taps, central heating ok

it sounds like your shut off valve might be bad even though it turns on and off by turing it doesn't mean that the washer is not stuck to the seat and not opening, try replacing the valve

Posted on May 29, 2009

gary1121
  • 332 Answers

SOURCE: vokera combi boiler

there is a zoneing valve thats suppose to be in the line to keep this from happening, might even have a check valve either way which ever one you have is bad and should be changed with a new one

Posted on Jun 06, 2009

  • 1 Answer

SOURCE: ariston A01 fault combi boiler

its not definately the pcb. change the detection sensor first( £3.20p). if this doesnt fix a01 fault then change the main pcb(£145).

Posted on Jul 06, 2009

  • 16 Answers

SOURCE: Heating circuit getting hot when hot water is running

Check to see if diverter valve is in domestic mode or heating mode.

Posted on Jul 10, 2009

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Heating circuit getting hot when hot water is running


Check to see if diverter valve is in domestic mode or heating mode.

Jul 04, 2009 | Water Heaters

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Re: combi boiler.


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if these are working it could be a faulty diverter valve switch not sending a signal to the boiler to run.

Mar 23, 2009 | Water Heaters

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