Upon arrival customer showed location of thermostat and attic system filter she is changing out. Found the coil and blower motor clean did see debri building up on plastics inside unit provided customer with uv opinions to adress this. Drain line is clean and clear flowing properly at this time. No surge protector on the indoor unit. When checking outdoor unit found coil clean no leaks detected at this time. System charge is within manufacturer specifications at this time and capacitor is in the correct range. Returned system to normal operation customer declined at this time to think about options provided.