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  1. M

    Replacing A Pull Cord Switch

    Hi Guys, Many thanks for your replies - very much appreciated. Cheers, Mark
  2. M

    Replacing A Pull Cord Switch

    Hi, I am looking to replace a lighting pull cord switch, situated in an airing cupboard, which seems to have failed (I have tried using a number of working light bulbs in the applicable light socket, but with no effect). The current switch has three wires connected to it: red/black/earth. The...
  3. M

    Flushing Vaillant ecotec 831 combi boiler

    Hi Andrew, Many thanks for the reply. Cheers, Mark
  4. M

    Flushing Vaillant ecotec 831 combi boiler

    Sorry for replying to an old thread, markyjones, but just wondered if you were successful in your efforts to drain your CH system. Any problems at all? Thanks, Mark
  5. M

    Draining Down the CH System - Vaillant ecoTEC Plus 938 Combi Boiler

    Hi, I am looking to drain down the house CH system. We have a Vaillant ecoTEC Plus 938 combi boiler. I would be grateful if anybody could tell me if it is sufficient to just turn off the boiler before draining the CH system. Many thanks in advance. Mark
  6. M

    Vaillant ecoTEC plus 937 Boiler - Leak

    Thanks for the reply - just what we've done. Managed to stop the flow of water from the leak by closing the water isolation valve, now just have to wait for the Bank Holiday to end before the professional can call. No hot water until then!
  7. M

    Vaillant ecoTEC plus 937 Boiler - Leak

    Afraid not - 9 years old!
  8. M

    Vaillant ecoTEC plus 937 Boiler - Leak

    Hi, I have a Vaillant ecoTEC plus 937 boiler, which has a shift load storage tank to provide immediate hot water before the combi kicks in. The boiler has developed a leak, which appears to be coming from the area of the shift load storage tank area. My question is, is there a means to isolate...
  9. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi David, Just so that there is absolutely no doubt whatsoever, I would like to thank you for helping me to cure the problem with my boiler. If my post relating to the inspection time interval and required pressure came across as disrespectful, or in anyway ungrateful, I can only apologise...
  10. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi Bunnyman, The written word................ I am in no way 'disrespecting' David. As I have said above - I am very grateful for David's help and suggestions. His help has helped me to cure the problem with my boiler. I believe that you have thought that there was a 'tone' to my posting...
  11. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi David, From the maintenance section - 3 years for the check of the DHW expansion vessel pressure, to a level of 4 bar. I'm sure that we've had the boiler serviced in that time frame! Cheers, Mark
  12. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi Gazdaz36 and David, Many thanks for your replies. Gazdaz36, I don't believe that the water pressure is anywhere near 10 psi, but thanks for the suggestion of fitting a pressure reducing valve. David, Having looked at the system, the 2 pipes cut into the overflow pipe...
  13. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi David, Thanks for the reply. The drainage pipe in question is the one that is under the front right-hand side of the boiler and connects upwards through the bottom of the boiler to the 3-bar PRV (with a red-coloured top); looking at the front of the boiler, it is situated at the forward...
  14. M

    Vaillant Ecotec Plus 937 - Drip from Overflow Pipe

    Hi, First time poster after some advice regarding a Vaillant Ecotec Plus 937. For some time now there has been a constant drip from the overflow pipe (the pipe from where the pressure relief valve vents). The drip happens whether the boiler is operating or not. The amount of water dripping...
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