ecotec

  1. S

    Vaillant ecotec VU 1206/5-5 F29 fault

    Hi guys, Hoping one of you may be able to tell me something I've missed. Bank of 5 boilers, 3 out of 5 showing fault. All were serviced in the summer and were working fine. Until now. In summer boilers had full strip, new electrodes, gaskets, ionisation. All 5 then fired and tested after...
  2. S

    Frost stat for Vaillant Ecotec pro 28 combi

    Hi Guys, I have a combi Vaillant Ecotec pro 28 boiler in my kitchen. I have just added a rad in my garage and have been advised to add a Honeywell frost stat in the garage to be wired up to the boiler. I have also been advised to add a pipe stat to be wired in series to the frost stat but...
    • ST1300
    • Thread
    • combi ecotec stat vaillant
    • Replies: 2
    • Forum: UK Plumbers Forums
  3. C

    Valiant ecotec 831+ combi/ Honeywell wireless programmer

    I could do with advice in exactly what connection terminals to connect to on the 831 PCB, I'm OK regarding live neutral and earth from the programmers relay which is a bdr 91 but it's the switching part of connecting to the PCB I'm unsure of. ie do I connect to the 24volt after removing the link...
  4. sammathias

    Vailliant ecotec pro 28 low gas rate

    Alright guys, just a quick one. Fitted a vailliant ecotec pro 28 today and upon commissioning the gas rate was slightly lower than 10% of the nominal, which baffled me because ive probably fitted 20 of these boilers and they have all been within range. All of my other checks where fine so i was...
  5. sammathias

    Vailliant ecotec pro 28 LOW GAS RATE.

    Alright guys, just a quick one. Fitted a vailliant ecotec pro 28 today and upon commissioning the gas rate was slightly lower than 10% of the nominal, which baffled me because ive probably fitted 20 of these boilers and they have all been within range. All of my other checks where fine so i...
  6. Y

    Vaillant Ecotec Plus 624 question- only radiator sign comes up

    Dear All I recently had the above Vaillant stem boiler with megaflo system installed. I have 2 issues if someone could please kindly help: 1. When I check the control panel no hot water tap symbol appears. Only the radiator symbol even when hot water is switched on. Is this normal or do I...
  7. L

    Ecotec plus 824 r1

    Hi chaps Have one of these that builds temp within 30 secs and cuts out in heating or hot water. Vaillant have told her she needs a flush but the rads are brand new and the water looks like drinking water. Don't think a flush will cure it. Wondered if anyone has come across the same...
  8. R

    Elnur CMX15 electric boiler vs Vailant Ecotec pro28?Hi

    Hi everyone, i really need one of your expertise to clear something up! which is more powerful out the two? Obviously the electric is 15Kw maximum and the gas is 28Kw but I have read that electric is 100% efficient and gas combi can vary? i have a three bedroom semi and want to ditch the old...

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