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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 18, 2025
Profile Activity
Topics: 17 / Replies: 2696
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RE: Are Homeowners Being Silenced Over Faulty Heat Pumps?

I would actually (and reluctantly) challenge the assertion that its fixable (it can probably be improved however). There are rogue traders throughou...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Help me keep the faith with my installation

Agree with @mars. There is also a diagram in the Vaillant installation manual. Careful with condensate - it freezes so you really don't want it runn...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Air source heat pump roll call – what heat pump brand and model do you have?

I'm surprised by this. Is it 2 port or 4 port?

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How many compressor starts per year

My fridge and freezer seems to do at least one per hour, 8000 per year. Just saying!

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How many compressor starts per year

Just checked mine. 543 starts from mid November to now. So, generously, 1000 per year unless I use if for cooling in summer. 20 years seems a reaso...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What happens when the outside temperature exceeds the upper WC point?

@judith Thanks, Ill give it a go. Given the tight hysteresis do you turn up the target temperature a bit to ensure it switches back on early enough ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What happens when the outside temperature exceeds the upper WC point?

My Vaillant definitely has a 'Max outside temp for heating' parameter. What it doesn't have, unfortunately, is a 'Max solar irradiance for heating' ...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Good to hear this, sensible to set the WL2 curve the same as WL1 for now also, avoids any ambiguity. Sun and south facing windows can be a mixed bag....

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Obviously without knowing how it is set up its impossible to comment on this. It seems your installer left it with settings that didn't work for you....

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Sorry but without more complete information its impossible to tell what is going on. Screen shots of the controller when its operating (making sure a...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Maybe. The alternative behaviour is that, above 10 outside, it keeps the flow temperature at the value for 10. Not sure which the Samsung odes. Se...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

There is something odd going on. It says water outlet 34 yet if it is running on WL1 with the parameters you showed us earlier it should never get to...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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