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Samsung ASHP Error


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9 minutes ago, Kelvin said:

An E912 error means it’s detecting flow when it thinks it shouldn’t. It’s likely that a relay or maybe a valve is stuck open. I think you can test this from within the control panel? 

 

Can't see anything in the manual. I've found the flow thingy but no idea what else I should be looking at.

 

IMG_20221217_090804.thumb.jpg.f02e260f2dbe5ba9c5cf7eac9dea11f1.jpg

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That shows you what the flow rate is when it’s running. It could be a relay in the Samsung controller box causing it. A neighbour had exactly the same issue which required a new PCB. In his case I powered the controller box off then on and the main circulating pump immediately started running which it shouldn’t do if there’s no call for heat. The relay in the controller box was stuck closed. 
 

I’m pretty sure there’s a diagnostic test you can do that manually turns the pumps on and off. If you turn it off and the pump still runs then it’s likely a fault in the controller box. Call Freedom Pumps as they are generally very helpful. 

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6 minutes ago, Kelvin said:

I’m pretty sure there’s a diagnostic test you can do that manually turns the pumps on and off. If you turn it off and the pump still runs then it’s likely a fault in the controller box. Call Freedom Pumps as they are generally very helpful. 

 

When I go to turn the hot water on, everything lights up and sort of kicks in briefly then goes off! Can't even get an engineer either.

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Here’s the self test operation I mentioned. You can switch each component on and off manually to test that each component is working. If it is the relay that’s stuck closed then it’s likely that when you switch the water pump on then off you might find that it’s still runs. 
 

93B1C10A-AE4E-4A77-91EA-DBDB68521E69.thumb.jpeg.35ba51393dddfceef795360f61d9fc64.jpeg

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I did some more googling and came across this thread on here. Same error state you’re experiencing and same potential cause I’ve seen before with my neighbour’s system. 
 

Just keep in mind that if you decide to open this up it’s a live board so you need to switch it off. If you’re not confident then don’t touch it and try and get someone out. 
 

 

Edited by Kelvin
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9 minutes ago, Kelvin said:

Here’s the self test operation I mentioned. You can switch each component on and off manually to test that each component is working. If it is the relay that’s stuck closed then it’s likely that when you switch the water pump on then off you might find that it’s still runs. 
 

93B1C10A-AE4E-4A77-91EA-DBDB68521E69.thumb.jpeg.35ba51393dddfceef795360f61d9fc64.jpeg

Thanks I tested those and the water pump comes on, albeit only briefly then off again. Others seem to be fine too.

 

 

 

 

 

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17 minutes ago, ProDave said:

Can you confirm it works normally in space heating mode, i.e. the pump continues to run and the house is warm, and your problem is only when trying to heat the hot water tank?

Yes heating seems to work fine, because house was warm this morning. When I put the stats up this happens so I presume it's just the water. So far tried two engineers and no one can come out before Xmas, unfortunately getting anyone in our area with HP knowledge is difficult and hell (or our house!) would freeze before I'd let the plumber back who did the plumbing and installation (signed off by Alto who are helpfully only open M-F).

 

Actually scrap that no heating either lights turn on but ASHP isn't working outside. Brilliant no heating or hot water.

 

 

Edited by canalsiderenovation
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Just spoke to someone who can't come out but he suggested the filter. I recall them showing us this so we are just going to try and check this. Does this bit look like the filter?

 

IMG_20221217_110724.thumb.jpg.c354d2bae0a37cf22771e523e207d243.jpg

 

And next question, if we need to take  I presume we need to turn something off before removing the filter. Any suggestion?

IMG_20221217_110806.thumb.jpg.f91e352c6c09f4d0184e9771bd7e2138.jpg

 

IMG_20221217_110757.thumb.jpg.2f71ce1e488e131247a026d0259d5e9c.jpg

 

Or this pic below where you can see what I think is the filter and the black handle.

 

IMG_20221217_110728.thumb.jpg.b6fe70039fe03b156cf1d2b9e3c8da57.jpg

 

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Only a year ago did Alto come out and do a warranty repair and noted the following on the job notes;

 

Flow switch and the cable replaced. Filter was clogged so cleaned it. Presume was down to 0. Filling loop was not working so had it replaced to top up pressure. Flow rates at 26 l/m. One of the filling set valve was half open. 

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I think the filter is inside the ASHP perhaps if there is anyone that knows this model could comment.

 

Is is still in warranty?  Can you play on the fact you have no heating in this freezing weather to get them to come on an emergency call?

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Just now, ProDave said:

I think the filter is inside the ASHP perhaps if there is anyone that knows this model could comment.

 

Is is still in warranty?  Can you play on the fact you have no heating in this freezing weather to get them to come on an emergency call?

 

I believe it was 12 months warranty and they came out a year ago when it was under warranty and we had the exact same issue! I have just found the email and it was the same error then and they replaced the flow switch and cable. They aren't open at the weekend. It's just over a year to the date I emailed with the same issue with the notes I mentioned above. Seems either way we are stuck this weekend with no heating or hot water.

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11 minutes ago, canalsiderenovation said:

Trouble is we don't want to do this incase we end up with water spewing everywhere as I'm sure you must need to isolate something first.

Turning the handle off should shut it off.  If you don't want to tackle it yourself you just need a plumber that can follow that simple instruction, not a specialist heat pump plumber.

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2 minutes ago, HughF said:

If it’s a freedom heatpumps install, it will use a filter ball instead of a maganaclean or similar. Plenty of information from Graham hendra on YouTube on how to clean these.

 

It's Alto rather than Freedom but I think it's the same I've got the videos so I feel OK checking the filter and I vaguely recall the engineer coming out last time doing this but I don't know if we need to do anything to make sure we don't get lots of water coming out when we undo the filter - that's the bit I'm worried about! If I unscrew something and we end up with a house full of water!

Edited by canalsiderenovation
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