Homeowner informed me AC was not blowing cold air. Inspected furnace, checked evaporator coil, checked filter. Upon inspection of condenser unit, motor starter was not getting 24 volts. Inspected low voltage wiring, found a frayed/broken wire. Informed homeowner this could be due to aging of wire, or possibly damaged from mice. Homeowner agreed to have repaired. Reconnected low voltage wiring and tested operation of system. Homeowner signed up for sunshine club- Furnace, AC, Air Exchanger, Humidifier.