mini split blowing tepid air no matter mode or settings

My 6-year-old Fujitsu is blowing room temperature air. I’m not sure how long it’s been doing this, because I have another unit on the floor above that is picking up… My 6-year-old Fujitsu is blowing room temperature air. I’m not sure how long it’s been doing this, because I have another unit on the floor above that is picking up…Read MoreGreenBuildingAdvisor