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F1p
@f1p
Member
Estimable Member
Joined: Oct 27, 2025
Last seen: Apr 26, 2026
Topics: 1 / Replies: 111
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Without the adapter installed there is no flow rate information available to plot on the graph (as MELCloud does not record it)   Service ...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Also worth checking for broken springs in 2 port zone valves or 3 way valves not seating/passing and restricting flow.  

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

The DeltaT is pretty high, by the sounds of it flow rate too low for the outdoor unit sizePump might be set on 5 - but potentially it needs replaced w...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

@davidalgarve The settings look correct, and i see you now have movement in the value - so it appears to be working. I know there is some filteri...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

The default for an unpaired or incorrectly assigned thermostat is also 20, could you further check: Initial settings > Room sensor settings > ...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

Finally, surely there must be some significance in the fact that the room temperature, as relayed from the wireless controller, shows a steady 20C whe...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

You can select a date in the past which perhaps reflects best the issue you see, and then Share that day - see the buttons to press outlined in red bo...

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

@davidalgarve Would you be willing to in MELPump > Detailed Report > Share As URL So we can see a detailed and interactive chart please?

3 months ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump

  I haven't been able to locate the outdoor unit model number here or in your signature, but a 120 in the part number suggests it's 12kW rather...

3 months ago
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RE: Ecodan Zone 2 Mitshibishi thermostat Auto Adapt

With a bit of work you could probably create a template to take the difference between a room temperature sensor and target and adjust one the offset ...

3 months ago
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RE: Melpump Users Anywhere?

I think this was resolved last night, it was for me anyway  

3 months ago
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RE: Melpump Users Anywhere?

@sheriff-fatman Yes, that's a good point - this conversation is related only to the Beta feature of the onboard compensation curve Further to that, ...

3 months ago
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