Heating Maintenance Performed Upon arrival system is working and operational. I began my maintenance at the outdoor heat pump unit, I broke it down and cleaned the coil removing dirt and debris. I checked and tightened electrical connections. I inspected the heating components for proper operation and wear. Amp draws were taken. I then proceeded to the three indoor blower units. temperature splits were taken, electrical components were inspected for wear and amp draws. Filters have been washed and reinstalled. Blower housing and wheel was inspected for balance and dust build up. Air supply was measured. Inspected safety switches as well as inspected home for fire and carbon monoxide detectors. Upon inspection of the outdoor unit I found there to be no form of electrical protection, recommend adding surge protection to the outdoor unit to protect the sensitive electrical components contained within. Upon departure system is working and operational.