I am lost and confused with my Daikin heat pump

This behaviour is not what I expected from a heat pump. I really want to be able to run the heat pump for shorter periods but stuff like this stops me doing it. I don’t think this is how a heat pump should behave.

It was working fine from 13.57 to 18.08 when I turned down the flow from 36c to 35c which stopped it.

It started back up at 18.12 and went through the same strange prolonged heating process until 18.52 where, just as it is about to settle down it decides to defrost even though it is 8c outside and no sign of ice on the heat pump.

Then it goes through the whole heating process again with the `Daikin Dip’ as I am now calling it!

Is this really how it should be, is it me, am I expecting too much?

I have changed nothing for days, it runs really well at times and at other times I think it is not right.

My DHW doesn’t seem right, and the DHW cycle seems to mess things up, it was fine yesterday morning and then the problems started after the DHW run yesterday, the heat pump didn’t resume heating like it was in the morning and it was worse this morning than it has been for the last few days.