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Samsung E911 intermittent issue

 
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Air Source Heat Pumps (ASHPs)
Last Post by NetDonkey 9 months ago
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 NetDonkey
(@netdonkey)
Estimable Member Member
Joined: 1 year ago
Posts: 56
Topic starter 20/12/2024 12:19 pm  

Posted by: @ashp-bobba
↑

@netdonkey Primary pump should run as follows:

Heating demand on 

DHW demand on 

Defrost demand on 

Secondary pump should run as follows:

Heating demand on 

Defrost demand on (only of the volume of the buffer is not enough for the min volume for the ASHP to defrost)

 

Primary pump runs as described above. Secondary pump is constantly on until DHW is activated

 



   
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 ASHP-BOBBA
(@ashp-bobba)
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Posts: 287
20/12/2024 12:53 pm  

@netdonkey so you may find the pump is wired through the 3 port switch so when sitting in heating mode but the demand is off the pump runs all the time but when switched to DHW it switches off as the movement of the 3 port would break the 3 port switch, if so this would be the wrong way to wire, your wire centre with the ASHP should have electrical connections for the primary and secondary pump set, you should also be able to dip switch or programme the ASHP so it knows if you are using a buffer or just 3 port valve, this way the ASHP will know if to just run one or 2 pumps and when. Not all ASHP are exactly the same and I don't know all of them but most are very simular.


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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 NetDonkey
(@netdonkey)
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Topic starter 20/12/2024 12:56 pm  

Posted by: @ashp-bobba
↑

@netdonkey so you may find the pump is wired through the 3 port switch so when sitting in heating mode but the demand is off the pump runs all the time but when switched to DHW it switches off as the movement of the 3 port would break the 3 port switch, if so this would be the wrong way to wire, your wire centre with the ASHP should have electrical connections for the primary and secondary pump set, you should also be able to dip switch or programme the ASHP so it knows if you are using a buffer or just 3 port valve, this way the ASHP will know if to just run one or 2 pumps and when. Not all ASHP are exactly the same and I don't know all of them but most are very simular.

 

Just heard back from Samsung and there is a software upgrade that will fix this logic so the secondary pump isnt always running.

 

 

 


This post was modified 11 months ago by NetDonkey

   
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 ASHP-BOBBA
(@ashp-bobba)
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Posts: 287
20/12/2024 1:03 pm  

@netdonkey excellent, that will help then 🙂

 

 


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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Transparent
 Transparent
(@transparent)
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Posts: 2688
20/12/2024 1:46 pm  

Posted by: @netdonkey
↑

there is a software upgrade that will fix this logic so the secondary pump isnt always running

Is that upgrade applied automatically over-the-air to all Samsung units?

Or does it require the householder or installer to do something?


Save energy... recycle electrons!


   
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 NetDonkey
(@netdonkey)
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Topic starter 20/12/2024 1:49 pm  

@transparent Samsung service rep coming out on 3/1



   
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Transparent
 Transparent
(@transparent)
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20/12/2024 1:59 pm  

Sheesh! Ash him/her how many sites they have to visit to implement the firmware change.
... and why they couldn't devise a system to do this remotely.

Yes, it might need the homeowner to authorise the upgrade within the App,

and it might need to be undertaken within a time-window in order to prevent hackers attempting such a route in future.

But we already have such functionality on the UK Smart Meter system, and that was designed a decade ago.


Save energy... recycle electrons!


   
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 ASHP-BOBBA
(@ashp-bobba)
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Joined: 11 months ago
Posts: 287
20/12/2024 2:01 pm  

@netdonkey thats great service 

 

 


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.
Professional installer. Book a one-to-one consultation for pre- and post-installation advice, troubleshooting and system optimisation.


   
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Mars
 Mars
(@editor)
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Posts: 3671
20/12/2024 8:55 pm  

Posted by: @netdonkey
↑

@transparent Samsung service rep coming out on 3/1

Did you have to pay for the visit?

 


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 NetDonkey
(@netdonkey)
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Posts: 56
Topic starter 20/12/2024 9:04 pm  

@editor as it’s a software upgrade they are recommending, I’m not needing to pay.  Going to pick their brains on all the questions I have when they get here too!!



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3671
20/12/2024 9:37 pm  

@netdonkey could this be a first for Samsung? 😂 They do have a habit of charging for visits. I’m curious to see whether it’s an actual Samsung engineer or one of their many agents handling the call-out.

But fully agree in you maximising the visit and getting as much as info as you can out them. Looking forward to the update.


Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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 NetDonkey
(@netdonkey)
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Joined: 1 year ago
Posts: 56
Topic starter 20/12/2024 9:47 pm  

@editor it’s one of their agents.  They did say the name of the company but can’t remember it!



   
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