Came out to perform a preventative maintenance on 3 systems at this location. Customer met me at front door and we discussed maintenance being provided today, filters, and any issues that the customer was having. Customer needed filters replaced and the only issue he’s having is with the guest house out back. They said the system seems to run past the thermostat set point and the only way to get it to stop is turning up the temperature. Told customer that I would look into it. I started with changing all the filters inside the home. Customer a has a cut to fit filter in the living room that I used a 14x25 to make it. Inspected all the indoor equipment. Blower assemblies, motors, evaporator coils, drains and overall condition of all equipment. Downstairs system needs a blower cleaning, and upstairs blower motor has minor oil residue on it. Recommend cleaning the blower wheel soon before it gets worse. The upstairs motor is still operating within recommended amp range, but I made homeown