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Last seen: Mar 26, 2025
Valiant have been superb with me, especially useful as my installer went bust just after my bodged installation.
@editor No, Travis Perkins took them to court at the same time as I did and they put the company into insolvency and made the director bankrupt (my co...
@iantelescope I had a remarkably similar experience (though I am happy with the heat pump itself). I ended up taking my installer to court but Travis...
Absolutely! This forum is how my Valiant system got set up. It was installed by a plumber who had no idea at all. I'm getting towards being happy with...
@derek-m Yes, @mars took the case to MCS not interested
@cathoderay Based on the questions they got an average score, if you asked me my views they were charlatans who had no concept of how ASHPs run nor an...
Mine was so bad Mars wrote an article on it. But for the installation itself. No handover, flow temperature at 55 degrees, no weather compensation, ...
@derek-m Handover pack, hmmm a handover of any sort would have been nice 🙂 Thankfully they left a full set of Vaillant docs along with the coke can...
@derek-m Great advice, even better if the really thick install guides are left on site!
Sorted, found out its fault code F.788 - pump not running. The controller manual fault section (left in my garage by the installer muppets) suggested...
@squonk Snap and mine wasn't at all competent either
Yup that's exactly what it is telling me! 🙂 Just got a fault code of F.788 (pump) from the main unit in the garage.
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Latest Posts
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@editor Thanks for your response and recommendations. ...
By DavidB , 6 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 20 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu Of course, in the way of such things, there a...
By Toodles , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
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RE: Flushing system, cleaning and inhibitor
Yes, my 50L volumiser uses the two lower ports, so ther...
By Old_Scientist , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
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RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 5 days ago
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 6 days ago
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I meant to say I cannot register my kit at Energyplus… ...
By Batpred , 6 days ago


