Performed heat maintenance on 1 year old Bosch split system heat pump. Reprogrammed thermostat for homeowner. Replaced 20x20x5 merv 11 filter with a merv 13 filter. Tightened all electrical connections. Tested all electrical components. Checked refrigerant levels. Cleaned outside unit. Wiped down air handler and heat pump. Everything is within specs. System is operational and heating at this time