I was called to a home to repair a unit that was not running in fair conditions. Upon arrival, I found that the unit was not receiving power. I checked the circuit breaker and found that it was tripped. I reset the breaker and the unit started running in fair conditions. I tested all the outlets and appliances to ensure they were working properly. I also checked the thermostat and found that it was set correctly. The customer was very happy with the service and thanked me for my help.