Recent content by kaijun

  1. K

    boiler firing fails and burner flashing in HW

    My HW thermostat was set to 60. It doesn’t behave like CH, once a programmed temp is reached, the burner led is off, the two port valve and the pump are turned off, after some time, c becomes 0.
  2. K

    boiler firing fails and burner flashing in HW

    240V, It is drayton 2 port zone valve for HW. CH controls Sunvic 2 port valve.
  3. 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...
  4. K

    Idea iCOS H12 boiler stop working

    thank you, guys, I have sorted out. It is caused by the ice.
  5. K

    Idea iCOS H12 boiler stop working

    I just removed ice, there are some water to come out. But when I switched on the boiler, it is not powered on, I don't see '8' initially.
  6. K

    Idea iCOS H12 boiler stop working

    I am IT and electronics engineer, have enough knowledge and experience to fix electronics. If repairing involves Gas, that is beyond my expertise.
  7. K

    Idea iCOS H12 boiler stop working

    I am not plumber, Is it easy to fix?
  8. 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...
  9. K

    one of room heatings doesn't have heat

    My heatings don't have bleeding valve
  10. K

    one of room heatings doesn't have heat

    It worked last year. I have adjusted lockshield valve, it doesn't help
  11. K

    one of room heatings doesn't have heat

    This is a new house. I moved in two years ago. the boiler is Ideal ICOS.
  12. 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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