cycling

Hello, I have a Vaillant TurboMax Plus 828E which I’m experiencing an issue with persistent cycling using the central heating. For years I’ve thought this was normal and that’s just how it operates, but maybe we’re just feeling the cold more because it’s becoming uncomfortable. I’ve got the...

I had plumbing work done in bathroom. My boiler now keeps turning on for 25 seconds, i can hear it doing something like pumping air or gas or something out, and then stops for 8min and then repeats. is this normal and I'm just noticing it now and hadn't before? everything switched off in the...

Hi, I have a Vaillant Ecotec Exclusive with Green IQ 835, VRC700, weather composition, VR920, Ambisense VR50 and V51. I followed the advice of different posts, especially https://www.diynot.com/diy/threads/vaillant-system-gremlins.541433/ However, I still have several problems...

Hi, I have a Ravenheat White Star LS100 about 15 years old. No room stat but TRVs. Recently it would not fire and the PCB was replaced and a boiler leak fixed. The boiler now runs for 10/15 minutes then starts cycling 30 seconds on/off. I have tried adjusting the rads and the pump speed to no...

Hi All Got a problem with a turbomax boiler. Water cycles hot and cold and heating is cycling also. HW - goes cold for a couple of seconds. CH - From cold start will fire-up reach temperature on boiler and stay off for next 4min and then start gain. The temperature on the digital gauge drops...

I’ve recently had a nest 3rd gen thermostat installed into this boiler, seemed nifty at the time however, this replaced no previous thermostat (we used to manually switch it on and off and there’s a panel at the front with a analog timer). So the nest 3rd gen replaced this. It’s been a few...

Hello Oil Boiler Trianco Eurostar Premier 100/125 Condensing boiler. Runs fine for about a minute then flame dies (sounds like the solenoid is closing oil supply) after 7 seconds it fires again and continues running. Fan is running all the while. Cycle repeats until the boiler gets up to...

I seem to have what must be a common problem when using underfloor heating with a boiler however I haven’t managed to find a standard solution online. The boiler cycles at a high frequency due to the difference in boiler power compared to what the underfloor heating manifold will accept. Setup...