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  1. K

    Electric cable in heating pipe notch

    Any reason why cable for heating controls can't be run in the same hole as heating pipe? The electrician has threaded his cable through the same drilled hole which I've put my plastic heating pipe through. Not sure if this is ok. Should I get him to re run it in it's own hole? Cheers.
  2. K

    Glow worm ultimate neons 1 and 3

    Hello, Been to look at a Glow worm ultimate 50 ff. Boiler is making a loud buzzing noise, and neons 1 and 3 are lit. I was thinking it might be the air pressure switch, but i'm not that familiar with these boilers. Anybody have any ideas. Thanks.
  3. K

    2 port valve wiring

    Is there a reason honeywell 2 port valves have a 6 core wire on the 28mm, and a 5 core on the 22mm. The reason I ask is that I was converting a gravity system to a c-plan. I put a normal 22mm 2 port on it. When I came to wire it, it needed white core to turn boiler on for heating. Had to buy...
  4. K

    Error code on Potterton Gold

    Hi, Fitted a Potterton Gold in the last couple of days. Customer called me last night to say there was an error code...E133. I checked inlet pressure, and when it was firing it was only 7MB. I happened to have a meter regulator in my van so swapped the existing one, and all was fine...
  5. K

    Wiring a Viessmann

    I'm swapping a Potterton for a heat only Viessmann. The Potterton has a switched live, and pump live. Does anyone know if I can use the 1 and L terminal on the Viessmann as the switched live, and pump live? Or is the only way to have pump over run, is to use the flying lead supplied with the...
  6. K

    2 system boilers

    Just wanting some ideas from any heating installers. I've been to quote for a very big house. The heating load is 57kw. I was thinking the best way to achieve this would be to install 2 30kw system boilers side by side, with an unvented cylinder. The heating system is in 2 zones, so...
  7. K

    57kw needed

    Just been to take a look at a job which requires 57kw. It's a big house, and all the radiators have been hung (not necessarily correctly sized), but no boiler fitted yet. I'm proposing to fit a system boiler with an unvented cylinder. The radiators and cylinder will total 57kw. Just wanting a...
  8. K

    PCB fault on baxi 105e

    Hi, Fitted a diverter valve on a 105e today. After fitting I got a 'pump fault low pressure' flashing neon. The pump runs, and there is enough pressure, so i'm thinking it may be a PCB fault. Anyone else had this problem? Thanks.
  9. K

    y-plan

    I've not done that many y-plans, so here's a pic of one i'm doing this week. How am I doing....does it look ok?
  10. K

    Y-plan

    I've not done that many y-plans, so here's a pic of one i'm doing this week. How am I doing....does it look ok?
  11. K

    Sundial y-plan wiring on viessmann

    Hello, I'm wiring a viessman boiler on a y-plan, and just have a couple of questions regarding the wiring. On the boiler there's a L,N,E and a 1,L,N. 1 is the switch live, but does anyone know if the L can be used as pump live? Also on the sundial wiring diagram, SL goes to terminal 10...
  12. K

    Gas fitters forum

    Don't seem to have got any info about this new forum.
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