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Daikin 8kw Monobloc not switching off when room thermostat exceeds set point

 
Air Source Heat Pumps (ASHPs)
Last Post by Toodles 2 months ago
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 Bash
(@bash)
Estimable Member Member
Joined: 6 months ago
Posts: 163
Topic starter 24/02/2026 3:50 pm   [#2849]

We get huge amounts of solar gain.

I had the Maduka room thermostat installed in the sunniest room to act as a limiter if we start to overheat.

We are running on WC and have set the thermostat to 22c. So if we go above 23.5c I'd expect the HP to shutdown.

On low solar gain days the house ticks along 24/7 around 21c constant. Perfect.

Today we have hit 26.5c on the thermostat, the whole house is very toasty and I expected the HP to shut down, but it hasn't.

What settings might need changing so the thermostat does it's job?

Thanks.


This topic was modified 2 months ago by Bash

   
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 RadWhisperer
(@radwhisperer)
Eminent Member Member
Joined: 6 months ago
Posts: 35
25/02/2026 11:39 am  

You can try adjusting the Modulation & Overshoot settings in the MMI to start with. Enter installer mode to adjust these.



   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2694
25/02/2026 11:47 am  

@radwhisperer And, in case you are unaware, to enter installer mode, you need to enter 5678 as the code. Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
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