Consider contacting LG.
Heat pumps do have their issues, but what you're describing is abnormally bad and I imagine it may be due to incompetent installation. LG's reputation depends on having competent installers; they may be interested to know about this, especially if these installers are "approved" by them in any way.
What sort of heating did they have before?
Heat pumps do have their issues, but what you're describing is abnormally bad and I imagine it may be due to incompetent installation. LG's reputation depends on having competent installers; they may be interested to know about this, especially if these installers are "approved" by them in any way.
What sort of heating did they have before?