Hi, F0 is ok, it means that the flap has rotated slightly past 100%, nothing to worry about.
The "climate control" in these cars works by mixing air from the cold source (the evaporator) and the hot source (the heater matrix), so when at 100% , the flaps are set to provide air from the hot source.
Sensor B also indicates that the system is trying to provide max heat (where the description in the link says it is deg C, it isn't, it's a virtual number which is some multiple of "target temperature minus in-car temperature").
All the other sensors also seem to be providing reasonable numbers (although I don't know what C and D represent).
So we are left with 2 possibilities
1. a fault ***ociated with the flow of air into the heater core
2. a fault ***ociated with the heater matrix
For item 1, try it with the pollen filter removed i.e. just remove the pollen filter, and put everything back without the filter, and see it that solves the issue
For item 2, the valve providing the engine water to the heater matrix is either open or shut, and you will need to visually check if it moves from one position to the other when you alter target temperatures from LO to HI and back again. I'll explain more if removal of pollen filter doesn't cure the problem.