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trebor12345
trebor12345
@trebor12345
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Reputable Member
Joined: Feb 26, 2024
Last seen: Aug 1, 2026
Topics: 18 / Replies: 179
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RE: Hitachi Yutaki SCombi Heat Pump - Owners

@sim0n0 Here's a reply to help you out. As a owner of the same kit would like to hear more from you. Hopeful you will be able to message, or just...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa Can I check something that I done some weeks ago. My underfloor manifold is set via the 12 flow gauges to a total of 20 l/m. In the UI of ...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

JamesPa Thank you for your very detailed reply. It's going to take me sometime to get to grips with this. I have started to keep a record of whats g...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

In mild conditions, yes I turn the heating off. This is done by putting the Heatmiser thermostat on the wall into the off position. So there is abso...

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa I have annotated the image to show what was going on. This was a manual run because we had 13C outside. Hope this helps.

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

Is this the Themo Off timing that your referring to? Just need to clarify. Just had another power cut, 3rd in just over a week.  

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa I have been back into settings. There is nothing set.

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

JamesPa Sorry I missed that. Have checked, nothing set in the that area.  

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

Sorry I was unable to find that setting.  

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

I have been in the system and done some images of what I found. Not the same as your details. I didn't find an ECO setting.  

8 months ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP

JamesPa This yesterdays run. In manual mode, so I turned the heating off and on. It was 13C OAT yesterday. But the off cycle between 6 and 10 was...

8 months ago
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

From memory of conversation with Hitachi, it's not a setting in the SW, it's a manual configuration of the buttons and switches on the control boards....

8 months ago
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