Preformed a maintenance on 2 Ruud heat pumps. Outdoor units: I checked amps on the compressors and fan motors, I checked the capacitors, I checked around the contactors and the boards, I looked into each unit for rubbed wires and rust, I cleaned out the bottom of the units, I vacuumed the drain lines, I washed the units down with water. Indoor units: I checked amps on the blower motors, I checked the float switches, I checked the electrical wires and connections, I checked the drain pans and drain lines, I checked the coils, I checked the supply and return lines, I cleaned the units down with cleaner.