I had a customer send me a few pictures of his Ductless Unit. Seems that the Outdoor coil is frosting up extremely heavily in heating mode.
I am not overly familiar with servicing these units as it seems that once you put them in they have very few problems. I did not install this one.
Seems to me this is possibly a low refrigerant problem. Anyone on the same thought path as myself? Or anyone got any other idea?