I have an ariston euro combi boiler. When I put the central heating on the flame ignites straight but the orange temperature lights 20-40-60 80 come on within a minute the flame goes out and does not relight. Normally when you ignite the heating the orange temperature lights come on one after the other as the radiators warm up. It seems to me as if thermostat is not working. could you tell me if you know what is wrong and if I need a new part if so could you me what I need, thanks Freddy
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