maybe that is part of your issue the mmi is not on its base fully , take a pic if you dont mind
the reason i say top right is because the wifi card is on the other side.

the mmi screen plugs on to the base

Ah, yes, had a fiddle and I see what you mean. It did pull off slightly, turned off, and and then completely rebooted as it dropped back in.

I thought I heard it start up, but it’s still not drawing power. :frowning:

did you see the mmi saying sycing with out door unit and the indoor unit soon after ?
normally takes a minute to complete the two % graphs to 100%

Didn’t stay and watch that this time, but it’s done it each time I’ve changed the WD curve.

other than that im at a loss to why things are not starting , it can take a good 5 mins after for the modoka to turn blue and start the heat

OK, thanks for the suggestions. Picture in case it’s still useful.

Octopus are coming first thing tomorrow. Hopefully they can find out whatever is flaky…

1 Like

Seems to have just come back to life. Definitely something a bit unreliable going on!

it looks from your picture it is see the modoka temp on the mmi ( does the temp match the modoka ? )

it can take some time to boot up and work out what it is doing after the restart after changes are made

Yes, they always seem to match. It’s only the Onecta app that differed, but then it caught up, so I’m guessing just a ‘cloud’ delay.

Yes, may have just been that. Lack of heat on a cold night does tend to make me more impatient!

And thanks again for your help!

1 Like

Whenever the system restarts, it re-evaluates the room temperature and if your setpoint is the same or below the ambient, it will not start heating until ambient drops 0.5c below the setpoint. It’s also really hard to workaround it by moving the setpoint up and down. My trick is to waft cool air up from below the Madoka using a piece of card to bring it down to 0.5c below setpoint. Then it will start.

2 Likes

That’s good to know, thanks.

An output temp of 50C will cause the defrost to happen more frequently than a lower temp. Outside temp below 2C triggers defrost. I run mine (12kWh Midea) at 36C now. That way it runs continuously except for defrost. On Cosy Octopus I run it for three 3 hours sessions with setback to 18-19C. With three zones I really don’t want the thermostats cutting out because that introduces cycling as does getting the house too warm in the really mild weather. In the cold snaps it runs continuously.

I made a temperature monitor with Home Assistant, which helped me understand.

It sucks that in the cold it has to defrost and this drops the circulation temperature which takes time to recover. I have batteries and solar so all my electric is at the cheap rate. The ASHP can use over 45kWh/day to heat 300m2 house when cold, but nearer 20kWh when 6-10C. It averages 3000kWh over the year. The EPC was ’C’ before. We wear jumpers and are more active. All the rads were changed to doubles and triples. Effectively the rad sizes determine the room temperature. The lounge never drops below 20C.

Phil

1 Like