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Ecodan Wireless Controller changing the room temperature target itself

 
Air Source Heat Pumps (ASHPs)
Last Post by HJD 1 year ago
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 HJD
(@hjd)
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Joined: 4 years ago
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Topic starter 23/10/2024 4:29 pm  

Has anyone with the Ecodan Wireless controller experienced it changing the target room temperature itself. Mine has happily sat at 18.5 degrees for all of the last 12 months. However twice in the last week it has automatically changed itself to 29.5 degrees. This has caused complete chaos with the flow temps and cycling!

Any ideas? I am wondering whether the batteries might be going.



   
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Abernyte
 Abernyte
(@abernyte)
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Joined: 3 years ago
Posts: 254
23/10/2024 5:22 pm  

Mine has not missed a beat since installation in 2019 and is still using the original set of batteries.  Have you set any form of schedule in Melcloud?



   
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 HCas
(@hcas)
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Joined: 2 years ago
Posts: 132
23/10/2024 10:21 pm  

Strange! Indeed perhaps a schedule on the physical controller or MELCloud?
Or could it be that the heat pump is by itself switching to fixed flow temp mode and displaying the flow temperature.


CEO and co-founder at HavenWise


   
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Mars
 Mars
(@editor)
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Joined: 5 years ago
Posts: 4298
24/10/2024 8:00 am  

This definitely sounds like a scheduling issue. Our iBoost from a few years ago had a random immersion boost twice a week when it was fitted, which spiked our electricity use unnecessarily, and we have no idea why it was set like that. We found and removed it.

I’d suggest you have a look at the schedule and see if there’s a random boost or off-peak setting activated. These can sometimes get overlooked.


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 Westkent
(@westkent)
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24/10/2024 10:50 am  

Posted by: @hjd
↑

Has anyone with the Ecodan Wireless controller experienced it changing the target room temperature itself. Mine has happily sat at 18.5 degrees for all of the last 12 months. However twice in the last week it has automatically changed itself to 29.5 degrees. This has caused complete chaos with the flow temps and cycling!

Any ideas? I am wondering whether the batteries might be going.

had the same issue.

Strange as it may sound I changed the batteries in the wireless controller.

Bobs your uncle 

 



   
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 HJD
(@hjd)
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Joined: 4 years ago
Posts: 43
Topic starter 24/10/2024 12:19 pm  

Thanks all for your suggestions and input. I'm pretty certain no schedule has been set so I am going to try changing the batteries as @westkent suggested as will report back if it solves the problem.



   
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