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Last seen: Jun 28, 2025
Have you checked the pump speed in the settings menu for the HW cycle? And maybe check the flow rate while the HW cycle is running. The defrost cycle ...
@simonwhiteley Have you come across this in your travels? It seems relevant to your situation.
The real world is the variation of people's houses – if you have looked at heatpumpmoitor.org you'll have seen how different the usage patterns are. T...
My understanding, albeit slight, of heat pumps in scandinavian countries is that they use booster heaters when the temperature gets really low. So the...
Is this a pump issue? What jumps out at me on the chart at the the time of the defrost cycle is that the return drops dramatically first, and pulls th...
Although the primary pump installed on my EcoDan is not the same make as yours I had a similar issue - mostly solved by reducing the flow rate. The hi...
I wonder if this related to the Holiday setting in the controller menu which sets a room temperature below which the heating will come on with a modes...
The hot water is taken from the top of the tank, to be replaced by cold water at the bottom of the tank with a minimising of disturbance. (I am presum...
I wouldn't place efficiency at the top of the list – you have to get to an understanding of how your house works themally and how the heating system w...
Using Auto Adapt/Room Temperature mode, where the FTC decides on operational temperatures and running periods, requires an internal temperature measur...
It will affect system performance as those are the main temperatures the controller will use to switch the outside unit on and off – definitely a case...
Going back to your -39 issue, this a glitch in the software running on the FTC, which is slightly surprising given that yours is a new installation, b...
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Degrees of Separation
Latest Posts
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@majordennisbloodnok I just noticed that A2A manufac...
By Batpred , 13 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
I didn't know about those, they look like good pieces o...
By JamesPa , 16 minutes ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 23 minutes ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 1 hour ago
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My first question is why bother with the auto balancin...
By JamesPa , 2 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 2 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 2 hours ago
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I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 3 hours ago
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 6 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@jamespa many thanks, definitely i will give the pre...
By ragtime27 , 17 hours ago
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RE: Heat pump installation quotations
@jamespa I noticed that in the Heat Geek design consult...
By Batpred , 18 hours ago
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
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RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
By Majordennisbloodnok , 1 day ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Vaillant arotherm plus 12kW. Installed March 2025. Ex...
By Harebell , 2 days ago
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