Search results

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Search results

  1. D

    Diverter Valve Operation

    Trying to find out exactly what happens when my system boiler is called to supply the radiators and hot water cylinder at the same time. For example today, whilst the boiler was on heating the water, the room stat triggered the boiler to supply the rads. The diverter valve installed in the...
  2. D

    Setting up Grandfos Pump

    I had a new Grandfos UPS3 pump fitted today, and am trying to set it up. I want it on 2nd setting, but having problems. The green light is on setting 1 and there is a yellow light on setting 2. If I press the arrow the green light stays on 1 and I then have yellow lights on settings 2 and 3. If...
  3. D

    Vaillant boiler change in operation

    My Vaillant boiler now only fires up for around 30 secs then goes off. The egg timer symbol then appears and flashes for several minutes. After that it fires up again and heats the rads. Would be grateful if anyone could suggest why this is happening. Thanks.
    • Dunbar
    • Thread
    • boiler vaillant
    • Replies: 13
    • Forum: Boilers
  4. D

    Vaillant Boiler ecoTEC+418 - Status Code S46

    Live monitor is giving me status code S46 (Comfort Protection minimum load loss of flame). Symptoms are boiler taking longer to come on and takes longer to heat rads, although it gets there in the end. Flame is lower on symbol and boiler quieter than it was. Anyone got an idea of why the...
    • Dunbar
    • Thread
    • boiler vaillant
    • Replies: 5
    • Forum: Boilers
  5. D

    Vaillant ecoTec Plus 418 D0 Setting

    Could anyone please provide an idiots guide how to change the D0 setting on my boiler. When I open the panel I'm faced with four buttons Bottom two + and - top two - -. That would be a great starting point. My D0 setting is apparently D00 (auto) and to cut a long story short, my boiler has...
  6. D

    Vaillant ecoTec 418+ Taking Longer to Reach Desired Temp

    Have noticed over the last view days the process has slowed considerably. Normally, the boiler fires up soon after the room stat clicks in and it gets up to desired temp within a few minutes. Have noticed the boiler is much quieter when it does ignite (approx 10 mins after being switched on) and...
  7. D

    Constant Room Temperature

    I'm looking for a more constant room temperature if that is possible. My boiler is a Vaillant Eco Tech plus 418 and I have a basic Honeywell room stat. I have the stat set so the boiler fires up at 20.6. It goes off at around 21.4 and then carries on heating up to approx 21.9. I therefore have a...
  8. D

    Target Flow Temp Exceeded

    My boiler (Vaillant eco-Tec +418) was installed around 18 months ago and has been working fine. However, I recently noticed that the target flow temp is being exceeded. We control room temp via the room stat, so whilst it is on at the programmer, the CH obviously doesn't come on this time of...
  9. D

    Room Thermostat Problem

    Had a Honeywell T6360 stat fitted a few days ago. It's working OK, but the problem is that it's not turning on and off at desired temperature according to stat. To obtain the desired temp I have to set the stat at 5 degrees lower. So for a temp of 21, I have to set the stat at 16. Has anyone...
Back
Top