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Vokera Unica HE boiler problem

Last night our boiler was working fine, then it went off and when i went to investigate there appeared to be no power - no leds lit on the boiler etc i put the boiler in the off position and left to check manuel etc, i returned after half and hour and the power was back on. and the boiler started working again. This happened a 2nd time later on. Any ideas what would cause this?

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5 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: ariston A01 fault combi boiler

the A01 fault code is nearly always down to the pcb, 99% of the time in fact, its a common fault, but not common enough for ariston to be responsible for boilers out of the warantee. you can normaly check this yourself, while the tap is running check if the electrodes are still sparking even after the gas had lit, this means the pcb is not detecting the flame and trying to relight. eventualy it will lock out with a A01 code, if u reset it might work for a short time but eventualy u will get to the stage where it will no longer resart.
if your handy you can replace the pcb yourself, there is someone selling them on ebay for £85 thats a steel, its half the trade price never mind retail price!
pcb part number is 65103422 just search it on ebay!

Posted on Jul 21, 2009

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mrhotandcold
  • 248 Answers

SOURCE: i have a vokera unica 28 which pulses when firing

your fan may need attension fan runs after boiler shuts down is normal on some Vokera,s too clear fumes out the flue 2mins approx

Posted on Oct 11, 2009

mrhotandcold
  • 248 Answers

SOURCE: VOKERA UNICA HE BOILER -

Vokera will send in post if requested

Posted on Oct 12, 2009

  • 1 Answer

SOURCE: Hi. Had a code 10

I had the same problem. There's another clear rubber pipe underneath, that runs from the front right to a pump in the middle. I had to pull it off and dry it with a hairdryer before mine would light properly. Blast into the hole the pipe came off too to dry the sensor if there is one.

Posted on Dec 21, 2010

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