Ac maintenance in lilburn Ga. Reset thermostat due to a power outage over the weekend. checked all electrical and mechanical components. Did not change filter. Found all components operating properly. Found blower wheel to be dirty and likely to slow down air flow in the future. Found system to have no water safety on top of the system, recommend having to protect your electrical components. Also recommend installing surge protection to protect the home against power surges. System cooling at this time.