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  1. M

    head banging problem with glow worm boiler

    I changed the c/h thermister like you suggested, I checked burner pressure and it read 11mb, i thought it had cracked it but then realised that all settings were set to maximum, I changed the thermisters back, and still the burner pressure is 11mb. This means there has been a 3mb rise from the...
  2. M

    head banging problem with glow worm boiler

    bump, any other suggestions im going back tomorrow
  3. M

    HOW TO CLEAN A HEAT EXCHANGER

    hi, £60 labour plus the head exchanger? if it included the head exchanger that sounds to cheat to be true. If it was the plate to plate head exchanger it could have been cleaned which would save a lot of money
  4. M

    Fixing to Dot n' Dab Wall

    a boiler needs to be fastened to a non combustible surface
  5. M

    head banging problem with glow worm boiler

    has no modureg only 1 wiring harness with 4 wires ,like a multiplug
  6. M

    head banging problem with glow worm boiler

    pcb checked and potentiometers have all been adjusted to max but will not achieve more than 8mb
  7. M

    head banging problem with glow worm boiler

    if flow rate reduced we get hot water upto 60 degrees -so plate never considered as this was getting hot fine and maintaining its heat but burner pressure is just same when doing heating
  8. M

    head banging problem with glow worm boiler

    yes voltage is as manufacturers instruction,according to manual if burner pressure cannot be achieved by potentiometer then can be adjusted on gas valve,on both parts burner pressure can be adjusted down but not up,no more than 8mb........with new gas valve not even allowing any gas through i...
  9. M

    head banging problem with glow worm boiler

    no modulation is done through p.c.b
  10. M

    head banging problem with glow worm boiler

    inlet pressure is 21mbar, working presure is 20mbar
  11. M

    Mid position actuator...I Think...

    yes definatley mid pos. valve ,possibly got some sediment on the flap that closes the heating port and allowing it to bypass. i am of course assuming that this has never done this in previous years when turning heating off and only runing hot water as this could be a design fault with the...
  12. M

    head banging problem with glow worm boiler

    Glow worm compact 75e combination boiler. problem: the water is only just getting warm at every hot tap and shower unit, too cold to get a shower. flow rate reduced and hot water gets hot. burner pressure checked, 8mb burner pressure should be 14.7mb Solution: increase burner...
  13. M

    New Combi Boiler for small flat

    Vailliants are very good boilers, probably better than vokera in my opinion but vokera are still a very good boiler. we tend to still to fitting just vokera so we can stock quite a few parts for breakdowns. :) good luck choosing
  14. M

    New Combi Boiler for small flat

    we fit a lot of vokera boilers because we havn't had any problems with them and parts are reasonably priced, customer service isnt bad either.
  15. M

    Potterton Puma 80 boiler won't fire up

    pressure guage should be at 1 bar when cold, and about 2 when hot so you shouldnt have bumped it up really, if it gets to 3 bar you have a pressure relief pipe and it chucks all the water outside, if this happens the washer normally gets a bit of muck and rubbish on it and doesnt close off...
  16. M

    Potterton Puma 80 boiler won't fire up

    pilot light but no main burner, gas valve?
  17. M

    Bathroom plumbing mods

    cold to your bath will already be 15mm durgo valve has to be higher than cistern pan doesnt it? just put a drain off cock on one of the radiators it will be fine. i see on some new propertys i have been working at the installers have drilled a hole through to the outside of the...
  18. M

    plumbing college students

    if somebody can yelp me this posted could be finished, complete, deleted, squashed, thrown away and then you wont have to put up with my moaning
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