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Last seen: Oct 21, 2026
As I have mentioned in a previous post, if you are in mode 3 field option #4091 if I remember correcly, you can increase the run time of the compresso...
@iantelescope I have managed to find a little wifi where I am. If you have the ability to isolate the buffer tank why not try this first? As @derek-...
@iantelescope Given the performance of your past installers, what are the reasons for concluding the PWM section of the Samsung board is faulty? ...
@derek-m I appreciate what you are saying and in an ideal world it would be best to remove everything and start again however I get the impression tha...
@editor thank you for moving this thread, I was getting concerned it was way off topic and needed to move 🙂 @jamespa From the symptoms descri...
@iantelescope After seeing your system and hopefully have understood it correctly, if I was in your position then I would consider the followin...
@iantelescope unfortunately your last post does not really answer my question. If you do not know the exact configuration that is understandable. Ho...
@iantelescope I am trying to put a picture together of how your heat pump, 2x PWM water pumps, heat exchange, buffer tank and radiators are connected ...
@iantelescope I follow what you are saying however the issue is the Samsung controller is only capable of controlling one PWM pump not two. That means...
@iantelescope there is no embarrassing questions! Pulse Width Modulation (PWM) pumps are a special kind of water pump that has a control signal t...
@mike-h sadly due to installation and system design (bivalent system) constraints I have had to use an external thermostat which has the (#2091/#2092)...
@iantelescope I briefly switched my system on yesterday to give you some comparison figures. In this warm weather my system ran for 2 cycles of 5 mins...
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Latest Posts
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders That's a serious amount of solar PV ...
By Rob of York , 4 hours ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
So far there is nothing on the value of the BUS grants ...
By Rob of York , 7 hours ago
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Coming back on subject... A shortened version of the ...
By Transparent , 10 hours ago
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RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
By Toodles , 11 hours ago
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RE: Marvel Heating liquidation
The interesting thing about the IBG: when I called them...
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
JamesPa The chart explains well how the heat curve an...
By trebor12345 , 1 day ago
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RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 2 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
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RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 3 days ago
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RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 3 days ago
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RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 4 days ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 4 days ago
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