Ecodan Wireless Controller changing the room temperature target itself - Air Source Heat Pumps (ASHPs) https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/ Questions and discussions about renewable heating and heat pumps en-GB Sun, 15 Mar 2026 23:16:34 +0000 wpForo 60 RE: Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36407 Thu, 24 Oct 2024 12:19:59 +0000 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.

]]> Air Source Heat Pumps (ASHPs) HJD https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36407 RE: Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36402 Thu, 24 Oct 2024 10:50:34 +0000 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 

 

]]> Air Source Heat Pumps (ASHPs) Westkent https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36402 RE: Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36391 Thu, 24 Oct 2024 08:00:58 +0000 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.

]]> Air Source Heat Pumps (ASHPs) Mars https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36391 RE: Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36382 Wed, 23 Oct 2024 22:21:32 +0000 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.

]]> Air Source Heat Pumps (ASHPs) HCas https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36382 RE: Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36371 Wed, 23 Oct 2024 17:22:49 +0000 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?

]]> Air Source Heat Pumps (ASHPs) Abernyte https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36371 Ecodan Wireless Controller changing the room temperature target itself https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36367 Wed, 23 Oct 2024 16:29:35 +0000 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.

]]> Air Source Heat Pumps (ASHPs) HJD https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-wireless-controller-changing-the-room-temperature-target-itself/#post-36367