Recent content by bab

  1. B

    Caleffi unvented cylinder pressure reducing valve noise

    Valve judders the 1st time a tap is opened after heating water up. Presume it's when there is more pressure than usual in cylinder. Air Pressure in expansion vessel at 3.1 bar. Pressure reducing valve is set at 3 bar. Cylinder temp at 50 degrees. This has only started recently after being in 4 yrs ?
  2. B

    Worcester 28 Si MK2. Hot water no heating

    sorry. not seen it. Only info is its a 28 Si i am an RGI but never used cc
  3. B

    No hot water unless tap is turned on full

    sounds like the dhw diaphram on way out. \It works on differential of pressure between hot outlet relative to cold mains feeding boiler. as they fail the diffrence required is greater. = more hot flow. to trip the micro switch.
  4. B

    Worcester 28 Si MK2. Hot water no heating

    just had a text off a mate with this boiler. Hot water ok but when heating demand it fires a few seconds and fails and trys again and fails etc. cant get there until after lunch so will miss option to get spares after seeing it but could get some on the way if i had a heads up to the fault...
  5. B

    My megaflow tank is squealing

    they have an internal air bubble baffle that traps air in the top of the cylinder. the air bubble air absorbs the expansion of water when you heat it up. its required that the air bubble is regenerated every 12 months to stop excessive working pressure, it normally states how to do this on the...
  6. B

    My megaflow tank is squealing

    has it dishcharged any water out of the pressure relief pipe.
  7. B

    Sony Vaio windows 8

    Sorry the operating system . the screen is blank so unable to do anything other than see curser moving around
  8. B

    Sony Vaio windows 8

    sorry for being a novice. Whats that ?
  9. B

    No heat demand from vaillant ecotec 837

    not sure about that make but most have a remote sensor box wired to the boiler for the stat to comunicate with. they often have a button you can press to bring the heating on manually. you may just need to replace the batteries in the stat.
  10. B

    No heat demand from vaillant ecotec 837

    Is the salus stat wirless. ?
  11. B

    Boiler pressure

    The system pressure when the system is cold should only be around 1 bar and lift to no more than 2.5 when operating. You should remove a little out of the heating system and see how it fairs. You can let a little out of a drain off or even out of a rad vent if you catch it into a bucket until...
  12. B

    Sony Vaio windows 8

    Hi my daughters laptop last week wouldnt load up. Vaio comes on the screen then the screen just stayed pink. now its only staying dark blue as its about to do something but nothing happens. any ideas ?
  13. B

    Sky hd noise on RF1 & RF2 HELP PLEASE

    Been having this problem since 2011. After 2 sky hd boxes 4 sky engineers over 2 1/2 yrs of frustration another engineer today still doesn't know whats the cause. lounge tv with hd box is never a problem as connected via a hdmi cable and a coax from rf 1 to tv. RF2 goes direct to attic and...
  14. B

    Help identifying black plastic pipe.

    You should be able to undo it and twice round the compression ring with ptfe should sort it. just hope they fitted the inserts in the pipe. Its old class C alkathene
  15. B

    optimax he 38 c flowmeter

    Anybody changed the flowmeter & cable as new wire has different colours and no instructions which to connect to which. new flowmeter has different size connector plug.
Back
Top