@netdonkey Usually, this chamber will collect a thin black film of very fine particles and unlikely to impede the flow to any degree, however, having said that, it wouldn’t harm to clean it out but make sure you isolate by closing the valves on either side of the ‘magna clean’ chamber first! Regards, Toodles.
Toodles, he heats his home with cold draughts and cooks his food with magnets.
@netdonkey definitely give that a clean, following what toodles said, and tell us if it helped.
Pre-order: The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
@netdonkey Do you feel confident to check the filter, you should be able to isolate the valve ether side and normally open a drain on the bottom of the filter to confirm the pressure is gone, then you can unscrew the lid to clean it out, be aware some of these filters are fitted with a magnet and a spring inside, this will need to be assembled back as it was after cleaning.
The code for the fault is low water flow so best to investigate if it is restricted or air locked.
Do you know what the water pressure is in the system?
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
@ashp-bobba reasonably confident to have a look at it. The current system pressure is 1.7bar which from googling seems ok.
@netdonkey agreed, sounds ok pressure.
Quick question I just thought of, can you take a picture of the flow sensor assuming the engineers fitted it to the return pipe to the condenser, I remember Samsung explaining to me that this sensor only works in 2 orientations and that there are restrictions, for example (and I am tying to remember a year ago now) it must be flow up and have something like 100mm before the sensor and 300mm after before any fittings to prevent turbulence or air bubbles and prevent it from miss reading, or horizontal with similar restrictions.
Just trying to rule a few things out.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
@netdonkey Ok, that looks correct to me and a nice amount of pipework above the sensor.
Does the system fail on flow when heating the water as well or is it just when on heating? Are you able to check what the flow rate is when on hot water?
Let me know how you get on cleaning the in line filter.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
@ashp-bobba It trips on both but more frequently with DHW. Re the flow rate when ion DHW, I think its the same FSV but will have a look
@netdonkey Ok. Can you give me the model and serial of the cylinder so I can work out the ports, I cant quite see the badge and different manufacturers use different ways for the bottom mounted buffers which this look like, I am not sure if I am placing the flows the correct way round.
Pink is ASHP flow
Blue is ASHP return
Red Buffer F/R
Orange DHW F/R
Green Circle (assumed heating pump and connections)
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
Oh great!
We now have someone else here who can doodle on top of photos 😀
Can I please check @ashp-bobba that my arrow is pointing to the flow sensor which you've been discussing with @netdonkey ?
And I've turned on the light in the cupboard so we can more easily see the black component parts in the gloom.
Net Donkey - you might want to ask Santa for some pipe lagging with a wide bore to insulate around those brass valves.
Any pipes and metalwork within 1-mtr of the cylinder will be sucking heat out of it...
... even the pressure-relief valve and down-pipe on the right, which doesn't have water in it.
BES sell a good range of Kaiflex Class-O insulation with bores up to 54mm.
Glue the slit-sides back together with Impact Adhesive.... the sort you leave to dry on each half before pressing them together.
Save energy... recycle electrons!
@transparent Hello, yes thats correct or at least it appears to look like it, this is the flow sensor that needs to be on the return pipe back to the ASHP condenser and is the little 5 wired bit of magic that causes all them errors when there is a lack of flow 🙂
I thought adding arrows to the picture may help as I was trying to work out which part of the circuit was doing what, something was not looking quite correct but I didnt want to work it out until I can see the cylinder diagram and confirmed the location identity of all ports on that multi port cylinder.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.
-
Sudden drop in COP
1 week ago
-
How can I programme a setback for my Samsung Gen6 8kW heat pump?
9 months ago
-
Samsung's Cold Shoulder: Should Heat Pump Manufacturers Be More Accountable?
1 year ago
-
Any installer recommendations for Samsung ASHP?
1 year ago
-
Issue with Samsung A2W Heat Pump - Water Outlet Temperature
3 years ago
- 26 Forums
- 2,131 Topics
- 46.8 K Posts
- 29 Online
- 5,655 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
I am keen to see how this unfolds and changes the lands...
By ASHP-BOBBA , 18 minutes ago
-
RE: Who has a V2G EV installation
General comment on battery care... I guess if ev is on ...
By Tim441 , 4 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist I have never cleaned the mag filter myse...
By Toodles , 4 hours ago
-
@old_scientist like for like comparisons are almost imp...
By Tim441 , 4 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist There is an option in the Tesla app that...
By Toodles , 5 hours ago
-
RE: Mitsu Wireless Controller and MelCloud
On the FTC5 I think this requires the dip switch on the...
By Abernyte , 5 hours ago
-
RE: ASHP heat output monitoring
@carlo I have a 16kw LG Therma V. Installed 2020 so eve...
By Tim441 , 8 hours ago
-
RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
@old_scientist me too. Just installed my new heat pump ...
By Eliuccio , 2 days ago
-
RE: Is your heat pump insured?
Yup just spoke to Privilege to inform them of my impend...
By Scalextrix , 2 days ago
-
RE: Forum updates, announcements & issues
Just to keep everyone in the loop, as the site continue...
By Mars , 3 days ago
-
RE: Fast DHW setting on Midea (Clivet) heat pump
@simon-w, is this something you could potentially assis...
By Mars , 3 days ago
-
RE: Share Your Experiences with Heat Pump Manufacturer Support
Fwiw I called my installer out for the first time a few...
By JamesPa , 3 days ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@sandy, I'll send Vaillant an email tomorrow and see if...
By Mars , 3 days ago
-
RE: Long term efficiency degradation
@jamespa yes as I thought thanks. We have a reaso...
By Scalextrix , 4 days ago
-
RE: Sunamp Thermino Heat Battery
@jamespa A few days after the installation had been com...
By Toodles , 4 days ago
-
RE: Planning Permission May 2025
Fair enough. I have read the legislation and MCS020a ...
By JamesPa , 6 days ago
-
RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?
An update on the Heatsava. It is the most difficult thi...
By heat-pump-newbie , 6 days ago
-
RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 1 week ago
-
RE: Ecodan - Legionella Operation Time and Target Temperature
Once the white plastic cap is removed, my immersion loo...
By Old_Scientist , 1 week ago
-
RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
By DavidAlgarve , 1 week ago