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  1. J

    TRV's & Boiler+ (Boiler Plus)

    Evening All! I am having a thick moment. Again. What does boiler+ say about installing TRVs when swapping a boiler? I have heard some say that you (always) need to fit TRVs when swapping a boiler. Others say that you dont now don't need TRVs with the uprated Boiler+ controls. Any thoughts? J
    • Jerry
    • Thread
    • boiler plus
    • Replies: 11
    • Forum: Boilers
  2. I

    Issue with vaillant plus 630

    hey guys a customer called me up and asked me for my help on a peculiar job, he has a vaillant ecotec plus 630 which always stays on so there’s a demand even though controls are off and non of the motorised valves are sticking , he says it was installed like this from day dot. The boiler only...
  3. M

    Vaillant EcoTec Plus boiler whines until hot water is turned on and then stops

    So for a while, our boiler a Vaillant EcoTec Plus has made a whining noise, usually in the morning when it first comes on but can happen any time of the day (when on). The first time it happened I turned on a hot tap and it stopped. I have been doing this ever since, but actually, it is annoying...
  4. W

    Bunch of small jobs you want plus one you don't...

    *sigh* This bidet has a sort of integrated spray in the middle of the pan that no longer works. It looks like it's made by Swan and is pretty old. The middle control I guess work(ed) as a divertor between flow round the rim and that from the spray. The former function still works. I guess it's...
  5. A

    Vaillant 937 Ecotec Plus problem

    Hi all, Hoping someone can help... We have a 937plus about 8 years old. Some weeks ago we noticed radiators were hot but no hot water when demanded. Quick fix was to switch boiler off the back on. Our regular heating guy has diagnosed faulty diverter valve which seems logical to my very...
  6. M

    Any Ferroli optimax he plus 31 c gods on here?

    I have above boiler with A41 flashing up flow sensor disconnected. So i have checked for loose wires pcb end and sensor end. I have checked the ohms on the sensor both sides and got 11k on both that was both through the wiring loom and straight onto the connections. Which says to me that there...
  7. G

    Vaillant Ecotec plus

    Hello friends! I'm experiencing problems with my Vaillant heating system, I got an f22 error (low water pressure) and I cannot find the filling loop since there are no valves attached to it. I'll appreciate if you could help me out:)
  8. Windy

    Vaillant eco TECH plus 835

    Hi, writing up my last report for my gas portfolio and have come up against something i can't work out whilst doing the gas rate figures!! Data plate shows Hot water pnw 34kw and qnw 34.7kw (hi) manual shows gas rate norm level 3.78m3/h minimum 3.4m3/h maximum 3.97m3/h If i fudge a gas rate...
  9. J

    Language Setting Problem - Vaillant Ecotec Plus 824

    Dear All Help! My boilers settings are in Polish and the manual online has a different settings box to mine (cf picture). I have tried google translating the options that come up but none of the words translate to 'language' in English. Help greatly appreciated. Best Joan
  10. D

    Saniflow plus - Possibly serviced improperly - Not sealed properly to soil pipe

    Hi from a householder amateur! I have a saniflow plus for over 5 years. For the last 2 years it "gets blocked" about every 6 months. I then call a guy to fix it. I am aware of what should not be put in saniflow etc. For the first time - I decided to open it up and investigate. I removed...
    • dewsbury
    • Thread
    • pipe plus soil soil pipe
    • Replies: 22
    • Forum: Boilers
  11. D

    Vaillant aqua plus water pressure low

    Hi, my ten plus year old Vaillant aqua plus boiler water pressure is low, however its not a conventional valve top open, I've purchased a key filling valve - below, unfortunately it doesn't fit the valve due to valve being previously opened with a flat screwdriver which has misshaped/worn out...
  12. S

    Vaillant ecotec plus 637

    Afternoon all, against my will... I’ve been forced to install these for a builder at a customers house. All’s gone well, but how the hell do you get into the installer level? I can’t seem to find it in the manual Help
  13. P

    Random rumbling noise on new Vaillant Ecotec Plus 615 VU

    Hi all. I've recently been getting regular complaints from customers about their new ecotec plus 615 vus regarding an intermittent loud rumbling noise. Checked high and low co2 ratios, gas inlet pressure etc but never find a cause? I've had Vaillant go back to a few but they dont give me any...
  14. S

    Vaillant Turbomax Plus 828E leak at Main Heat Exchanger connection

    The copper pipe that connects is on the LHS (view from front) and I get a small leak every other day. Do not have to top up frequently, just wipe away. Also has developed an occasional S.54 fault "delay mode due to flow temperature gradient too steep" which means the hot water runs cold with no...
  15. Ted808

    vaillant blew up! eco Tec plus 831

    custard rang last week, boiler is going out intermittently, he can't remember the fault code... so I take a look, stuck it on chimney sweep to see if anything is untoward. Nothing fires runs... then it went to F75... so I said I'll come back with the flow switch and recommend a drain down and...
  16. M

    Intermittant F22 in Vaillant Combi Bolier Turbomax Plus 828 E

    I have Vaillant Combi Bolier Turbomax Plus 828 E. About four years ago, the Engineer having serviced the boiler, forgot to open up the water valves of Magnaclean and problem of F22, started since then. Not always but some times F22, appears which does not allow Hot water or Central Heating to...
  17. quality

    remeha avanta plus .

    Hi folks a customer of mine has just moved and has the above boiler installed in their new house. They want it servicing which I thought some of you may have some pointers. I have never even seen one TIA
  18. Bettyboo

    Water luke warm - Megaflo and Valliant ecoTec Plus

    Hi Guys Please would you be able to give your thoughts on this... Last week had boiler serviced (its 4 years old) all ok afterwards until this morning, water was luke warm. Still luke warm after boiler has been on this evening. Temp reading 48 degree on boiler (target set at 68 degrees)Water...
  19. W

    Potterton pro max 28 he plus pressure rise

    Hi looking for advice went to a job yesterday pressure kept rising and blowing out prv when heating on so I repressurised the ex vessel . I was called back this morning doing the same ,I took the ex vessel out and it was still pressurised also supply pipe to it is clear i renewed the prv which I...
  20. J

    Boiler Plus - Smart Controls & OpenTherm

    Good evening All, I have come accross a situation and I would like some opinions. I am installling a combi boiler in a property with.......no internet! My usual MO has been to fit a combi and Nest combo to keep homeowners and the law happy. Specifically Ideal Vogue Max Combi using the...
    • Jerry
    • Thread
    • boiler plus
    • Replies: 20
    • Forum: Boilers
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