Upon arrival system was in working condition. Looking at the indoor unit all electrical connections and components are good. Blower and coil are clean. Drain lines had build up , cleared it. Recommended drain pan strip. Filter is clean. Uv bulb is out , recommended bulb replacement or uv upgrade. Heating components and safetys are good. Looking at the outdoor unit all electrical connections and components are good. Capacitor within tolerance. Amp draws are acceptable. Cleaned unit inside out. Opened up louvers of return grills because it was making noise. Customer is not happy with how much her electrical bills are coming out to be with this new system. Will talk with supervisor to see what we can do about it. Left system in working condition.