Welcome to the forums.

That doesn’t sound quite right. The Pico pump shouldn’t be running 24/7... it should only circulate when there’s a heating or hot water demand. If it’s constantly on, it could be wired to run permanently or there may be a control issue (for example, the heat pump controller not switching it off when flow stops).

You’re right that “40W” on the display is the electrical draw, so if it’s always showing that, it’s burning around 1 kWh every day just idling — not ideal. 

I'd check to see if the pump stops when you power down the heat pump itself. If it doesn’t, it’s probably been wired directly to the mains rather than via the controller. When your heat pump is off, the Pico should go off too. 

@editor thank you! I didn’t think it was right. We had the electrician and plumber out last week and they fixed it as it had an error initially but since then it is constantly on!

The heat pump isn’t running right now and it is still drawing 40w, I will contact them and tell them it doesn’t seem right! 

@lch07, good luck and please give us an update when they've come back.

I've spent a lot of time recently watching @pirate-rich at our house working on the wiring centre for our system (who is meticulous), and I can see why it's so easy for things to get wired up the wrong way if you're not paying attention.

Fingers crossed they can come back soon and fix it.

Posted by: @lch07

↑

@editor thank you! I didn’t think it was right. We had the electrician and plumber out last week and they fixed it as it had an error initially but since then it is constantly on!

The heat pump isn’t running right now and it is still drawing 40w, I will contact them and tell them it doesn’t seem right! 

What Samsung model is it?

Depending on the controller setting and how the system is being controlled, it may mean the system pump is still running when the heat pump compressor is off.

If you think how weather compensation works, it relies on the heat pump (which is outside) knowing what the water temperature is inside the pipes. Therefore, if the water flow from the heating system completely stops, the outdoor unit has no idea what the actual water temperature is inside the house (hence the heating system pump needs to run to give this feedback to the heat pump).

Most weather compensated heat pumps have a 'turn everything off when it reaches this outside temp' setting (say set to 14°C), and when it reaches this, then everything will turn off.

@pirate-rich hello,

it is a AE050RXYDEG/EU is the model number. This could add up as when they game they set up water law which from google suggests its samsungs way of saying weather compensation. 
is there an easy way to fix it to save me ££ on energy😂

Posted by: @lch07

↑

@pirate-rich hello,

 

it is a AE050RXYDEG/EU is the model number. This could add up as when they game they set up water law which from google suggests its samsungs way of saying weather compensation. 
is there an easy way to fix it to save me ££ on energy😂

To advise you accurately I need some pictures of the installation of the system and current controls. 👍

Posted by: @lch07

↑

££ on energy

40W is not a lot.  Your house will likely be drawing ~400W all the time due to the various appliances on standby, router, fridge etc. If its on half the time for half the year when it doesn't have to be, your max saving is about £25 and half the time for half the year is likely an overestimate.

That said some heat pumps 'sniff' the water temperature when cycled off by turning the water pump on every so often, which is an alternative approach and saves some water pump energy.  I think, but am not sure, that my Vaillant has some sort of algorithm which means that the water pump isn't always on when the compressor is off, but neither is it always off when the compressor is off.

@pirate-rich

Picture above of the central control panel and the pump that is constantly running