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Last seen: Jan 12, 2026
It’s a long time since I’ve looked at the manual but I thought I remember Thermo off just controlling any secondary circulation pumps? I’ve spent hu...
@jamespa It has always worked with these settings and nothing has been changed which points to a fault somewhere. I haven’t done any troubleshooting y...
@jamespa I know it’s reached the set point as the set temp and the actual temp are both showing 48 degrees. Usually this would trigger the switch back...
@jamespa Hi James The controller shows it’s still in DHW mode despite reaching the set temperature. It’s not on a timed program, it turns on at 45 and...
@jamespa My experience is that local 'old school' plumbers/heating engineers tend to be older and don't want the hassle of getting involved in poorly ...
@jamespa I guess it could be a faulty connection. The original installers fitted all the cables so badly that the mental case wouldn't fit. It's sat o...
@jamespa I honestly do appreciate you trying to help but it's nothing obvious. It's in DHW mode which is set to 48 degrees - temp gets up to 48 but it...
@editor Big ad on this site advertising £7500 saving on a heat pump. NOT if that £7500 went to the developer! As the first owner of our property, I wa...
@editor Just seen your book 'Bodge Busters' with a forward by Graham Hendra. Graham Hendra formerly of Freedom Heat Pumps who supplied the Hitachi sys...
@jamespa Latest issue is the system getting 'stuck' in hot water mode and not switching back to heating. The motorised valve can be operated manually.
@editor So many pro heat pump evangelists on the internet, but the reality, at least local to me in Buckinghamshire, is an industry full of charlatans...
@trebor12345 Sorry, the forum won't let me message you until I have more replies
Latest Posts
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
MCS aren't involved in commercial a2a installations whi...
By JamesPa , 2 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Interesting. Perhaps wait and see how things develop! ...
By JamesPa , 2 hours ago
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Any readers with an interest in Solar Farm generation i...
By Toodles , 2 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
Yup! Summer in Spring. Wonder if Summer will last unt...
By Majordennisbloodnok , 3 hours ago
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RE: Solar Produced vs Home Consumed
It's worth adding that if you have a hot water tank and...
By JamesPa , 4 hours ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 5 hours ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 5 hours ago
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 6 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 9 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 9 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 22 hours ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
