In this month’s troubleshooting problem, you’re responding to a complaint that the temperature in a house is too warm. When you call ahead to let the customer know you’re on the way, they provide the additional information that “something is running,” but the temperature just continues to rise.
Upon your arrival, you perform a quick check to confirm the thermostat is properly set, that the temperature in the building is far beyond the set point, and that the indoor air flow is normal. Investigating further, you also find that the outdoor fan motor is operating normally, but the compressor is attempting to start and kicking off on overload. Using the diagram in Figure One and the legend shown in Figure Two, you begin your evaluation of the electrical system components.