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	RE: Predicted Heat Loss & Needs from MCS calcs vs EPC vs actual By Tim441, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	I'd be interested in other experiences - if you have the data. Clearly heat loss calcs and EPCs depend on quality of assessors in the first instance. I'm contemplating challenging my latest EPC - but ...
	RE: Vaillant aroTherm not heating with many faults By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@anon67 Sorry I cant help. The only 'lead' you might follow is the fact it works for DHW. The faults look like they would affect DHW also but apparently they don't which could indicate that they ar...
	RE: Heatpunk Floor plan issues By jamiejones85, 2 days ago Forum Safety, Regulations, Tools, Plumbing & DIY Installations
	Now I understand why heat geek and others charge for the next step of getting a price for an install, this takes ages 🤣
	RE: Vaillant aroTherm not heating with many faults By Anon67, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa On the live monitor I'm getting "Heating compressor blocked" "Evaporation temperature too low" Also had a new fault code this morning, F. 823 Hot gas temperature switch open I found a fault...
	RE: Recommended home battery inverters + regulatory matters - help requested By Batpred, 2 days ago Forum Energy Storage
	The diagram below is a simplified view of the internals of the Solis S6 hybrid. The earth shows against the grid port connects to the consumer unit and the DNO (in my case). There is also an additio...
	RE: Heat pump not reaching flow temperature By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	@davec Ive had a look at the screenshots. Lots of the parameters are things you wouldn't want to touch but: Im guessing H43 and H44 are the two FTs for the WC curve and P18 and P19 the corresponding ...
	RE: Vaillant aroTherm not heating with many faults By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	When I had a series of apparently unrelated faults my installer turned up, checked the flow rate using the test menu, and cleaned the filters (two - a mag filter and a gauze filter immediately behind ...
	RE: Heat pump not reaching flow temperature By JamesPa, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	At this stage I would say no as gross underestimation of the loss is not the most likely cause of the problem. More likely causes are (a) the heat pump, though badged 11kW, doesnt actually do 11kW at ...
	RE: Recommended home battery inverters + regulatory matters - help requested By JamesPa, 2 days ago Forum Energy Storage
	I cant see how that is the case if the earth is provided by means of a bond to the metal outer sheath of the incomer; no cut (other than one in your driveway of which you would surely be aware) can re...
	RE: Heat pump not reaching flow temperature By DaveC, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	Thanks @jamespa and thanks @johnd (hope I haven’t hijacked your thread too much). I’ll hopefully hear back from our installer or the manufacturer early next week and will post if there’s anything usef...
	RE: Recommended home battery inverters + regulatory matters - help requested By Transparent, 2 days ago Forum Energy Storage
	I too think that the Solis earthing diagram is confusing. As I see it the situation is this... We commonly have circuits which are protected by an Earth-Leakage Trip, such as an RCD or RCBO.They 'meas...
	Vaillant aroTherm not heating with many faults By Anon67, 2 days ago Forum Air Source Heat Pumps (ASHPs)
	I have a 3 year old 10kW vaillant aroTherm heat pump connected to dhw and ufh. The heat pump kicks in on demand for hot water but when it comes to heating it faults, getting a mixture of faults F.732...