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Samsung problems

Profzarkov · 2025-09-05T09:14:40Z

Hi I've just had my ASHP serviced - quite tricky out here in West Wales. The installers CES didn't want to know and aren't taking on any new customers - I guess they're victims of their own success - too many installs! Anyway, Green Warmth came out and did a very good service. However, the next day, and probably or not totally sure it was their fault - the ASHP is now playing up. The CH pump is ON continuously. If I boost the HW and cause the heat pump to operate, it stops the CH pump. But as soon as the HW reaches the target it goes back to running non stop. I had a go at firing up the thermostats to run the CH but nothing changed - pump runs but it does not fire up the ASHP. I know I've had the CH off all Summer but we have kept the HW going. I've got one of their engineers coming out this afternoon - if it's not their fault, it's going to cost but I'd like to get it sorted before the winter. Last year it was brilliant - greatly reduced costs and a warm house. I'm a physicist and have a good idea of how it all works - I set up the "WaterLaw" and as I say, it all worked a treat. I'm very frustrated that I can't work out what it's doing . . . .grr. Any ideas? Steve

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Air Source Heat Pumps (ASHPs)

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Profzarkov

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Topic starter 05/09/2025 11:49 am

Here's a photo of the whole system & also the ch pump

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Profzarkov

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Topic starter 05/09/2025 11:51 am

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Profzarkov

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Topic starter 05/09/2025 11:52 am

I noticed that the two valves are quite warm too🤔

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JamesPa

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05/09/2025 12:10 pm

Posted by: @profzarkov

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@jamespa just the CH one and no nothing is heating. When I put the demand in for hotter water - it shut down the CH pump plus some whirring of valves - not sure which. But as soon as the HW demand was met, it went back to the continuous running. It was odd that I couldn't run the CH system. Maybe too warm outside? We'll see

OK so what controls the CH pump? It could be controlled by the heat pump, but perhaps more likely (given you have a buffer) it could be controlled (directly or indirectly) by the call for heat from the thermostats, or the state of the valves (which may be controlled by the call for heat from the thermostats). If you can work this out you will know where to look. Follow the wiring it will give you a clue. Fiddle with the thermostats and valves that will give you a clue..

This post was modified 4 months ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.

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Profzarkov

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Topic starter 05/09/2025 12:18 pm

Thanks. No buffer. Def controlled by the Samsung. Thermostats seen to have no effect. Looks like a serious failure on the panel? It's under warranty... .

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Profzarkov

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Topic starter 05/09/2025 1:17 pm

Engineer has been. Prob air locks....undid a few things and forced it to heat.....we thought the valves had failed but a rare thing to get both failing. And under a year. The supposed air release valves don't always do their job but the system is working now & the valves have closed down & pump stopped. Yep, simple solution. Thanks for your help

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bontwoody

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05/09/2025 3:51 pm

@profzarkov Good to know in case it ever happens to me. 😁

House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
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Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60

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