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Thanks. Default is 1 minute. I can increase to maximum 5 minutes. Cycle rate is 6 (default)

Hi. Any advice on optimal setting for 'cycle rate' and 'minimum on/off' given my boiler type? Vaillant ecoTEC Plus 418 Open Vent With new DT90E stat Assume defaults are good enough but any advice welcome It certainly clicks more often then previous mechanical stat. Suppose it has to...

Sweet. DT90E purchased, installed, and is working. Easy when you know how! Thanks all

Thanks all. Sounds like it's worth giving it a go myself. Much appreciated. Mike

Thanks Tony It's a Vaillant ecoTEC Plus 418 Open Vent btw Don't mean for you to draw me a picture but would you therefore expect a Honeywell DT90E or similar to work? http://www.plumbnation.co.uk/site/honeywell-dt90e-wired-digital-room-thermostat/ Thanks

Thanks. Is there anything I can do myself to ascertain what's what? Any suggested thermostats that I could look into? Many thanks

Hi. Want to replace my Drayton (RTS1) with a good digital one. I've attached my current wiring setup. Could anyone suggest a good digital room thermostat that I (a wiring novice) could install? Many thanks. Mike

Wiring for Drayton RTS1

It's still going. Any ideas? Should I not be worried?

any advances on 'new pump'? has anyone experienced this before?? I'm still getting hot water and heating..?

someone on here must be able to shed some light on this..... HELP!

I've got an ideal ICOS HE15 gas fired fan-flued condensing boiler. The equipment has not been touched since day one. The Alpha is in the airing cupboard (near the Megaflow HE), the ICOS is in the kitchen. Hope this helps.... Thanks

Yes it's an Alpha + Are you saying this is how the pump works? It may well have been pulsating for the past three years and I just haven't noticed...! Is there a preferred setting for the alpha? I'm in a purpose built two bed flat built 2005, six radiators, combi boiler. Any advice is...

See profile picture for image of pump

but to actually answer your question - turning the dial (while the pump is in use) does not have any effect

Blimey, that's fast. the 'dial' is almost fully clockwise. ie the thin point of the dial is pointing the the thick part of the indicator. i take this to be max? I don't have a clue what i'm talking about. This may take a while.... Cheers

Please don't say 'air in the system' Grundfos and a plumber have already said that. Bleeding/venting has not sorted it. I've got a Grundfos Alpha, 3yrs old, runs for a few hours each day. The pump works, pumps just fine (I have c/w + hot water)... but the flow is not constant. I can only...