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  1. K

    boiler firing fails and burner flashing in HW

    My Ideal icos boiler develops to a weird problem. It works fine with heating, but if hot water is required, the boiler has 'c' stayed on and burner led begins flashing, then gone, it starts work. It seems everything normal. After 2/3 minutes, boiler firing stops suddenly and led flashing comes...
  2. K

    Idea iCOS H12 boiler stop working

    After I press reset, I see 'c' and burner light flashes, I hear the boiler tries ignition 2/3 times and water bulbling, then 'c' goes to 'L F'. I tried serveral times, it is same. before this, I heared big noise like banging. I have no idea of what is faulty? I moved to this new house more than...
  3. K

    one of room heatings doesn't have heat

    In one of my rooms, heating doesn't work this year. There is no heat. I have unscrewed TRV and checked the pin. I can push down the pin and it springs back. I have no idea what is wrong. Any idea? Thanks
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