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    Aiston SX20 Intermittent hot water

    Ariston SX20 boiler is fine in central heating mode but when the hot tap is run it fires up then 10 seconds later main burner goes out then 5 - 10 seconds later it fires up again and this continues. Consequently water does not get hot just luke warm. Diverter valve is lifting ok. Very grateful...
  2. C

    Ariston SX20 Euro Combi Hot Water Problem

    I have a problem with DHW on Ariston SX20. It fires up as soon as hot tap is run then about 30 seconds later burner turns off then 10 to 15 seconds later fires up again. This continues on and off as long as hot water tap is open hence water never gets really hot just luke warm. Central heating...
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