Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Samsung Heat Pump Issues
Hi everyone!
Our home has a Samsung air source heat pump setup and to be honest I’ve always thought it’s been pretty good! A lot of our neighbours have had issues and swapped out their systems for oil boilers (a bit of a step backwards to me) the only issue we have ever had was with the unit freezing up but I managed to get someone to come out and replace the sensor that made the auto defrost work and that sorted it.
But we are now being plagued with a low flow error (E911) everything online says it should be an easy fix but I can’t get to the back of it, I’ve cleaned the magnetic filter we have on the system and topped up the pressure to just under 2 bar but still the same. Looking online our system looks like it’s been plumbed in very differently to a lot of others, I’ve attached a photo if anyone has any suggestions or ideas or things they think look a little weird then let me know! 😂
Scott
Welcome to the forums @scotty229. I would suggest seeing if there's a Y-strainer on your system too, which has a gauze filter in it that often triggers flow errors if there any corrosive bits in it.
🔥 Britain’s Heat Pump Shitshow
How Installing a Heating System Became a National Nervous Breakdown
Free UK shipping.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
New to heat pumps?
Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
@scotty229 I'm sorry to hear of your issues. It looks as if you have an old fashioned flow meter on the right vertical pipe as well as possibly a Sika flow meter on the upper horizontal pipe. If so, do they both show low flow rates? The heat pump will throw a E911 error if the Sika flow meter reports a low flow rate even if this is falsely low. Is your Wilo pump on its maximum setting? Is your system a single loop (I cannot see a buffer tank) and how is your hot water heated?
There are others on this forum, who understand how the piping should be arranged much better than me. Hopefully, someone will comment on this.
- 27 Forums
- 2,758 Topics
- 64.9 K Posts
- 299 Online
- 7,162 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Where heat loss surveys seem to go against practical reality
I am amazed that there is not something out there to me...
By JamesPa , 35 minutes ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 6 hours ago
-
RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 11 hours ago
-
-
RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
-
RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
-
RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
-
It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
-
RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 4 days ago
-
RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago





