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ThunderMink
@thundermink
Member
Active Member
Joined: Nov 25, 2024
Last seen: Dec 4, 2025
Topics: 1 / Replies: 8
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

@f1p Thanks for the info, good to know

5 months ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

@meehow Try to check the temperature of TH3 if your unit have it installed. Mine was off by 11 degrees C causing defrost cycle to malfunction and fini...

6 months ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

Ok, so now i have finally sorted out the main problem, TH3!! Erlier i had followed the troubleshooting guide and measured all the thermistors and all ...

6 months ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

Hello, unfortunately i did not take any photos, but you should check the service manual of your pump, In the puhz-shw112yaa service manual they have p...

8 months ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

A bit of a follow up on the progress of the Ecodan pump, while finding and correcting the issues i faced last winter we are now getting in to heating ...

8 months ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

@editor Sorry for the slow reply, it looks like a happy new year to me. 4 days ago it was a bit warmer so i got to start trouble shooting a bit more, ...

1 year ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.

I did not have the time to check the thermistors Yesterday but i am now almost certain that's the problem. I enabled the cooling function on the heat ...

1 year ago
Reply
RE: Mitsubishi Ecodan 11kw Defrosting Issue.

@westkent Thank you for the info, this was exactly what i was thinking about. i have a Beamex temperature calibrator and a dry well temperature genera...

1 year ago
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