Last seen: Jul 10, 2025
Im not sure what you are monitoring but defrost is normally done by switching off the fan reversing the direction of refrigerant flow so the heat ...
If your ASHP has both a pressure sensor internally and isolation valves and you also have a pressure sensor one on the expansion vessel then you can i...
I would actually (and reluctantly) challenge the assertion that its fixable (it can probably be improved however). There are rogue traders throughou...
Agree with @mars. There is also a diagram in the Vaillant installation manual. Careful with condensate - it freezes so you really don't want it runn...
I'm surprised by this. Is it 2 port or 4 port?
My fridge and freezer seems to do at least one per hour, 8000 per year. Just saying!
Just checked mine. 543 starts from mid November to now. So, generously, 1000 per year unless I use if for cooling in summer. 20 years seems a reaso...
@judith Thanks, Ill give it a go. Given the tight hysteresis do you turn up the target temperature a bit to ensure it switches back on early enough ...
My Vaillant definitely has a 'Max outside temp for heating' parameter. What it doesn't have, unfortunately, is a 'Max solar irradiance for heating' ...
Good to hear this, sensible to set the WL2 curve the same as WL1 for now also, avoids any ambiguity. Sun and south facing windows can be a mixed bag....
Obviously without knowing how it is set up its impossible to comment on this. It seems your installer left it with settings that didn't work for you....
Sorry but without more complete information its impossible to tell what is going on. Screen shots of the controller when its operating (making sure a...
- 26 Forums
- 2,104 Topics
- 46.3 K Posts
- 124 Online
- 3,393 Members
Join Us!
Latest Posts
-
RE: BUS Grant: removal of all other fossil fuel heat sources
@editor If it is of any interest, we had the BUS grant,...
By Toodles , 48 minutes ago
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
@jeff I am very sorry, but with my very limited sight, ...
By Toodles , 56 minutes ago
-
@robs ASHP Closure of doc unknown's thank you And man...
By Bart , 4 hours ago
-
Sorry to hear that @bruce. Sadly I’ve heard from multip...
By Mars , 11 hours ago
-
RE: Crystal Ball Time: Communal or even Area Energy Storage?
I am invested in a couple of listed energy storage fund...
By Old_Scientist , 14 hours ago
-
RE: Who's your electricity provider and what's your tariff?
That would be my biggest commitment -time to gain great...
By SUNandAIR , 22 hours ago
-
RE: Who has a V2G EV installation
As has been discussed on other threads, trying to justi...
By Majordennisbloodnok , 2 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
Thanks @mikeh. Then I will also go back to non smart ta...
By ChandyKris , 2 days ago
-
RE: Location of hot water isolation valve on cylinder
@transparent Thank you so much and very helpful. Earlie...
By rossowheels , 3 days ago
-
RE: Ecodan consuming 100kwh per day in new build!!!
It does indeed look like that, @skyefarmer. There is ...
By Majordennisbloodnok , 3 days ago
-
RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
By Lucia , 4 days ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
"To tell you the truth, I don't know if HAL is homicida...
By Scalextrix , 4 days ago
-
The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
It’s fascinating to watch how low-temperature heating i...
By Mars , 5 days ago
-
RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 5 days ago
-
RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 6 days ago
-
RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 6 days ago
-
RE: Heat pump solutions and/or installer recommendations for France
I’d travel to France for work if you were struggling wi...
By Damon Blakemore , 6 days ago