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Crimson
@crimson
Member
Honorable Member
Joined: Jan 16, 2024
Last seen: Nov 7, 2025
Topics: 4 / Replies: 256
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RE: Grant 13kW Aerona3 - issues getting zones to temp

He showed me a photo of 5-10l/min.   However am not convinced this pump was the issue. Realised I have photos of the flow setter from early ...

12 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Ok he's told me he'd like to see depending on what it's doing between 18l/min - 28l/min. Have asked what it was like before

13 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

This is what I'm seeing during the DWH cycle currently.   Will check again from 4pm when heating is running  

13 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I'm only seeing 22l/min on the flow setter with the hot water cycle running but I'm none the wiser if that's good or not…

13 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

  No idea, they may have done that when did the 50L install, but didn't mention it. He was saying the primary circulating pump (one bottom ri...

13 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

…and it's not the water pump, ramped up to 28l/min - 30l/min, then quite soon after dropped to 20l/min. Thankfully Grant had the sense to also send ...

14 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Shortly installer is coming to replace the offending pump &/or the pcb controller (can't remember the term).   1 living room sitting at 1...

15 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

  Oh completely, he even said without the hydraulic break either a secondary pump would have taken over or it just would have obviously not bee...

2 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

  That's good to hear. I truly hope this 10 minute replace of the pump will do the job and I can sign off this project and move on!  

2 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Here it is:   (Ignore lack of lagging for now, they're coming back tomorrow/Friday to sort that)

3 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Hi @toodles , hope you're keeping well! It's been plumbed in as a 4 port LLH/volumiser combination. Much to my annoyance when the specialist wanted...

3 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@jamespa be very interested to know your thoughts on this. A 6L LLH replaced with a 50L one…could that cause more issues? I'll hopefully have the ...

3 days ago
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