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Grantmethestrength
@grantmethestrength
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Joined: Feb 1, 2025
Last seen: Oct 1, 2025
Topics: 5 / Replies: 102
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RE: Grant Aerona3 - Home Assistant control via Modbus

And I also did a thing!!!!! In my quest to learn all the things I have created an AI agent that I will be adding to, that can search all things Chofu/...

5 months ago
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RE: Grant Aerona3 - Home Assistant control via Modbus

@uk_pete_2000 Yeah we get massive solar gain on half of our house but as soon as the wind changes it wicks away the warmth like no ones business, the ...

5 months ago
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo, yarp I used the Chofu manual to map all the parameters and now have good monitoring of the system, adding the thermistor to the tank has als...

5 months ago
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RE: Grant Aerona3 - Home Assistant control via Modbus

@uk_pete_2000 Cheers for the support. I am going to start populating the various helpers, automations and scripts I am creating as and when I create t...

5 months ago
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo I have the Grant CP04 controls which are practically pre-historic, I want to be able to have granular monitoring and control in order to diagn...

5 months ago
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RE: Grant Aerona3 - Home Assistant control via Modbus

Good evening everyone, I have been busy beavering away and have (hopefully correctly) mapped all the parameters and Modbus registers, there are a fe...

5 months ago
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RE: Is this normal? Click of the DHW returning to space heating

So the Lone Ranger returned today! Even though we thoroughly described the fault and them agreeing it was probably the diverter valve, geuss what they...

5 months ago
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RE: Is this normal? Click of the DHW returning to space heating

@ashp-bobba thanks for confirming this, I do notice that the water pump doesn’t modulate at all and pretty much runs constantly. We are still waiting ...

6 months ago
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RE: Thermistor for a Grant QRSC180SL

Cheers @editor I managed (with the help of a mirror) to take a look inside. If this helps anyone else (as I genuinely didn’t know) the sensor pocket ...

6 months ago
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RE: Thermistor for a Grant QRSC180SL

The all mighty Claude AI reckons between 100-150mm but as we all know the AI’s and the 5G’s have been wrong before! 🤣

6 months ago
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