Upon arrival checked the HVAC system for cooling operations, found the 9- year old Air Conditioning unit not working properly due to electrical failures in the voltage booster to the compressor. Also found faulty electrical voltage booster to the air blower motor in the gas furnace, need to replace the electrical voltage boosters in the outdoor and the indoor units and to install a power surge protector device $1336.00 for proper and safe operations of the unit. Due to moving soon, customer Authorized the replacement of the electrical booster in the outdoor unit for immediate repairs only. Replaced the 70.5 electrical voltage booster in the outdoor unit, checked operations, unit is working at this time.