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Cooling with Samsung Gen6 and Flow error

 
Air Source Heat Pumps (ASHPs)
Last Post by IaAck 26 minutes ago
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 EcoBaker
(@ecobaker)
Estimable Member Member
Joined: 1 year ago
Posts: 42
Topic starter 11/07/2025 8:31 am  

HI

I've got a Samsung gen6 ASHP, which I am trying to use for cooling. I have a large Harnitek fan assisted radiator in my main living room. Whenever I put the cooling on after about an 40 mins I get the e911 flow error. 

I've checked the flow sensor its working fine, and on a cooler day a few weeks ago I put the heating on for a couple of hours and it works fine. So is this a pump problem, is it struggling due to the cold water and increase viscosity, thus can't pump it round effectively. Maybe a pump with bigger head would help?

Any thoughts would be much appreciated?

Samsung Gen6 8kw ASHP in a two bed victorian mid terrace.


   
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 IaAck
(@iaack)
Trusted Member Member
Joined: 2 years ago
Posts: 37
11/07/2025 10:16 am  

I see that these fan coil radiators either come with a two-way or three-way control valve  built into them. What does the valve do? Well from a quick read of yhe operator instructions, it appears the control board can close off the valve in certain preset conditions (e.g. timer mode). 

I suggest you look into your fan coil units (radiator) operator parameters to see what the current settings are. I take it that you are selecting cooling mode on the radiator as well as the ashp?

This post was modified 24 minutes ago by IaAck

   
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