Remeha Avanta 18v Error code E4

Discussion in 'Plumbing and Central Heating' started by Simon Duff, 5 Oct 2020.

  1. Simon Duff

    Simon Duff

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    Good morning !

    I have a Remeha Avanta 18v Gas boiler installed 9 years ago which is used as a standby when log burner not operating. It is on LPG and worked perfectly last year. In anticipation of using it more this winter starting in November, I tried to start it up this weekend to check all well. I checked all the usual things and switched on. It went through it’s 3 minute purging cycle and then attempted to fire. It made its 5 attempts then shut down displaying E4. The manual indicates a gas flow problem but also refers to ionisation current. I couldn’t check ionisation current as there wasn’t an established flame. However I cleaned the electrodes and tried again. Still E4. I had a new electrode set left over from previous service kit so tried that. Still E4. The ignition transformer must be working as it lights the gas and then after about 3-4 seconds the gas valve shuts and the flame goes out with a slight whoosh. I am thinking that the part of the ignition unit which monitors the ionisation current may be at fault or is there another part of the controller which reads this current.
    The gas safe engineer who installed the boiler is retired and before I engage another engineer who I don’t know I would like to hear any views or advice you out there might offer.
    Thank you
    Simon D
     
  2. oph

    oph

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    You wont find those answers in here.
    Gas work isnt for those not competent.
    If I was in your shoes, look for someone on google with decent feedback
     
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  4. Simon Duff

    Simon Duff

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    Thank you ooh. Engineer coming today hopefully.
     
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  5. oph

    oph

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    Let us know how you get on
     
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    DIYnot Local

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