Amana bottom freezer gives insufficient temperatures

Amana bottom freezer XRBS017BW.

Temp in freezer and refrigerator varies w ambient temp to some point.

Cold kitchen: F: 14F R: 43F

Warmer kitchen : Worse

Following has been tested OK:

2 x door seals

Compressor runs frequently

Comp stops when temp in freezer is dialed from coldest to warmer

Refrigerant is increased to double required amount which gives better performance

No laks

Coils clean

Fan next to compressor working

Fridge has been unpowered for 24 hrs to melt any ice

Sometimes...repeat sometimes ....compressor can be started by tapping temp control dial in freezer....with colder kitchen this is rarely the case....