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Brine pump error message on Thermia 8kW ground source heat pump system

 
Ground Source Heat Pump (GSHPs)
Last Post by Mars 6 months ago
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 SCHanna
(@schanna)
New Member Member
Joined: 6 months ago
Posts: 3
Topic starter 11/02/2026 2:37 pm   [#2818]

Hi, I have just joined this forum.

we live in Northern Ireland. Build our house 10years ago and installed a Thermia GSHP 8kw system. The brine loop goes straight down 350ft.

All has been amazing with running it. however 2 weeks ago an alarm  message - Brine pump - came up and we had to switch the unit off as it was going to AUX2 so using alot of electricity. 
Our problem is getting someone to look at it. The company who installed it is no longer trading!
I have researched and found that the brine antifreeze can deteriorate over time.

We cannot seem to find someone to look at it here - Northern Ireland.

Help


This topic was modified 6 months ago 2 times by Mars

   
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Ground source heat pump GSHP Northern Ireland
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4804
11/02/2026 3:31 pm  

Welcome to the forums @schanna, and sorry to hear about your issues.

I don't know any installers in Northern Ireland, but I'll put my feelers out for you. Are you specifically looking for someone to come out and fix it, or are you looking for solutions you can potentially do yourself to get it back up and running again?


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.


   
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 SCHanna
(@schanna)
New Member Member
Joined: 6 months ago
Posts: 3
Topic starter 11/02/2026 3:57 pm  

Either please.

i have searched the internet, turned it off then on. Very little information out there!!



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4804
11/02/2026 10:03 pm  

@schanna no problem at all… I’ll see what my installer network, which is extensive, can recommend.


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4804
13/02/2026 11:45 pm  

@schanna I’ve just DM’d you a potential company that’s been recommended to me… I can’t vouch for them which is why I haven’t posted them here.


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.


   
ReplyQuote
 SCHanna
(@schanna)
New Member Member
Joined: 6 months ago
Posts: 3
Topic starter 14/02/2026 3:58 pm  

Hiya, sorry cant see the email?



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4804
14/02/2026 4:16 pm  

@schanna I've DM'd you the details. Please click in the little envelope under your Dashboard (top of the right sidebar).


New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.


   
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Topic Tags:  Ground source heat pump (1) , GSHP (6) , Northern Ireland (1) ,
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