Search the forum,

Recent content by Emkew

  1. E

    Intermittent fault on Y plan

    I have traced the issue to the new valve head being faulty. Which manifested the exact same fault as the original faulty valve head, This is why it was tricky to diagnose, (that's what you get for trying to save your customer money and buying a cheaper version from Amazon!). The orange wire...
  2. E

    Intermittent fault on Y plan

    Unfortunately not.
  3. E

    Intermittent fault on Y plan

    It says mid position on it so I assume it is. I plan to revisit next week and do the following checking for the correct voltages at each step. Room stat turned down for tests A-C A. disconnect and leave disconnected the wire from Cyl stat to No.8 and check nothing works. (no rogue voltages...
  4. E

    Intermittent fault on Y plan

    Hi John, Thanks for your help. I have been back today and I want to summarise the situation. 1. Timer fitted not a programmer so there is no H/W off from the clock. There is a H/W off when the cyl stat is satisfied 2. When H/W only is required (via cyl stat calling and Room stat satisfied)...
  5. E

    Intermittent fault on Y plan

    Going back tomorrow and I will update the thread after the visit. The timer is in the kitchen, there is no issue when the timer is switched off only when calling for heat, Room stat satisfied presumably cyl stat calling and heating is also on intermittently. Valve must be holding in the mid...
  6. E

    Intermittent fault on Y plan

    Thanks John, I will check this out, but I may need to get an electrician if it needs a rectifier (as I have no idea what it is or where and how to fit it). Can there be an issue with the new style pumps that organise their own pump speed? I think I read somewhere that if they have a faulty...
  7. E

    Intermittent fault on Y plan

    They wont be able to say as the cylinder is inaccessible in the loft but I am assuming that is the case as how else could the pump and boiler fire?
  8. E

    Intermittent fault on Y plan

    Thanks that what I thought but apparently intermittently it brings the heating on when the roomstat is satisfied and I can't figure out why or how if the only missing wire is the H/W off connection. I'm Baffled.
  9. E

    Intermittent fault on Y plan

    Thanks for the response and diagram. I understand that without the H/W off connection the valve will only supply H/W only or mid position and will not drive to heating only. This I assume could result in H/W getting too hot but I don't understand how it is bringing the heating on when the stat...
  10. E

    Intermittent fault on Y plan

    Thanks for the response, what is "afaik" please?
  11. E

    Intermittent fault on Y plan

    Customer complains of Intermittent heating on Y plan with Stat satisfied. New boiler fitted last year (no permanent live required or fitted previously) on an existing Y plan system. Existing timer was a Randall 103 (no hot water off position as its a timer not a programmer). The customer wanted...
  12. E

    Vaillant boiler with a possible poltergeist!

    Thanks Vee You are absolutely right. Sometimes experience can blinker you to new possibilities. The boiler has held its pressure for a month until last Wednesday. Due to family illness I haven't had a chance to fit the new cold fill valves that I have bought. I am tempted to monitor it for the...
  13. E

    Vaillant boiler with a possible poltergeist!

    Thanks for your input. I think I will get a replacement cold water valve to change at a future point as it is obviously giving some problems. However when the boiler over pressurised the cold valve was in the on position it was only the flow and return valves to the heating that were turned...
  14. E

    Vaillant boiler with a possible poltergeist!

    Vaillant EcoTec 931 R1 47-044-32 I have worked in this industry for over 40 years and never experienced this. One of the issues being that the boiler is fitted in a property that I own and rent out. Apologies for the length of this post but it is a long and involved story and if any of you have...
  15. E

    I-mini combi noisy when heating on

    I have a customer who is complaining of noises like a finger on a wine glass when the heating is on. It goes away if the water is turned on. I have seen many posts about noise on this boiler with hot water turned on and goes away when heating is on but non this way around. I am going to call...
Creating content since 2001. Untold Media.

OFFICIAL SPONSORS

OFFICIAL SPONSORS

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock