Ämne: Nibe VVM225 with F2040-8

[ja100]

Hi sorry for English I am still learning.

I have the above setup, but recently (at least the last few months), the heatpump can never get above 81hz compressor speed, even when the required speed is high (for example 110hz). Many months ago I had a block for above 81 but removed it and it never seems to have removed itself from the actual unit.
Any ideas what I can do? Ive tried factory reset to no avail.. is some kind of hard reset on the actual heatpump maybe?

thanks!

[Carl N]

Menu 5.1.23 should be "Auto".
Menu 5.11.1.1, check that it isn't in silent mode and there is no frequency filter?

[Carl N]

Maybe some temperature sensor can be faulty?
Check evaporator temperature and compare with outdoor temperature?