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Last seen: Sep 11, 2026
Anyone managed to lever Vaillant to fix this issue? Surely if it’s vibrating the pipe work eventually it’s going to cause cracks in the solder joints.
Just seen the videos for the new arotherm pro. They’ve managed to get a 7kw into a 3.5/5 chassis. I’ve still got the noise issue that no one at Vailla...
Heard a rumour Vaillant are shelving the 7kw and brining out an 8kw. Wonder what the threshold is for getting our noisy units swapped.
@jamespa the installer did fit primary pro flexis which aren’t that flexible. Because they had to move them as they were bending them which the manufa...
@jamespa They came and after a bit of push back accepted my idea to put all 4 sensors in the same place indoors and wait for them to balance. Now hav...
Got Vaillant coming on Monday. Any tips on how to get them to sort the sensors and humming sound in the house?
@simonf I’ll give it a go. I’m a bit worried they will try and charge me though as been warned by them in the past when the installer tried to arrange...
@editor I find this sort of response from the manufacturers to only reinforce news outlets like GB news view of heat pumps. They ran a story recently ...
@agentgeorge that would be a great idea. My installer knows about my problem but isn’t sure how to fix as I’m guessing they don’t want to buy a pile o...
@simonf I did try swapping them twice and in both cases the gap increased by 0.2 to 0.3 compared to the shipped position error of 0.5/6. ive tried c...
So it seems probably most of the issues I’ve had are down to bad flow and return sensors. With them swapped around I’m now getting what I can only ass...
@agentgeorge if it is i need to somehow tweak it to match as its confusing the heat pump. 0.5c apparently skews the cop by about 25% up or down depend...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you are considering phasing the project, then I woul...
By GrahamF , 3 hours ago
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 5 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 5 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 7 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 8 hours ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 3 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
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