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it is lit. the heating is working. the water is hot for a short time then goes cold and hot again takes forever to run a bath .
sorry for the delay in getting back to you but iv been unable to go down my daughters to look at her boiler. having listened to the boiler it fires up straight away and goes out after 3 to 4 mins. thats with or without the heating on and flashes f5 and takes a time to relight .