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  1. D

    Airlock?

    Thanks for your S**t comments g20 and mickyg, i am trying to learn faults like everyone else who starts to learn. cheers
  2. D

    Airlock?

    Am i getting mixed up? I thought a system boiler worked with a cylinder and header tank. Is it not a combi that has a sealed system and filling link? Or would you call this a traditional boiler.(system boiler) The boiler is an ideal icos. cheers To all thanks for help, been...
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    Airlock?

    Cheers Pete, The water is clear, at the cylinder you can hear water from header tank trickling into circ, then it stops, then, more faster then slows down and stops. The boiler probably lasts about 20-30 secs. Then i would assume the thermistat/thermister has reached tmp then...
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    Airlock?

    OK, this is an ideal system boiler. I have had the casing off and could not see apump there, there is virtually only enough room for the gas valve. so i presume it is under the floor on its way to the cylinder, where a would imagine the port valves are there, to which there is no access as floor...
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    Airlock?

    Glad i wasn't called out to yours, if you have nothing better to say. Everyone has to start somewhere.I cannot get to pump as under the floor which is laminated.
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    Airlock?

    Hi , yes i have came across system boilers b4 but not with this problem. It is an ideal boiler cheers
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    Airlock?

    Hi, Yes i am an engineer but fairly new (2 years) to this trade, but just never came across ths b4.Pressure seems ok on water side.Emersion works fine and pressure. PRS1 what do you mean by exp pipe cheers
  8. D

    Airlock?

    Thanks for that , will try. As for the pump i cannot physically find it and diverter valves. I presume there under the bedroom floor which is laminate(great place for laminate) as this is only the direction of the pipes. cheers all
  9. D

    Airlock?

    Thanks for the replys, but does anyone have any idea what this could be, or the best way to approach this? I have checked all valves, all open. I cannot get to pump or port valves as under laminate, but the hot water mode stll goes to cylinder and stops point blank at cylinder inlet...
  10. D

    Airlock?

    Hi there, I got called out to a system boiler, it will fire up for say 30 seconds then cuts out. The boiler makes all sorts of noises. I have checked the flow to the cylinder which gets hot, but the return is cold plus cylinder. No fault codes on the boiler. It only has one large...
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