Performed 2 system cooling maintenance. I checked amps, capacitors, filters, drains, electrical, safeties, temperature differential, refrigerant temperature, and cleanliness. Both systems are performing well, but are some things that should be addressed on the upstairs system. The blower motor bearings are worn out and that leads to part failure. The blower wheel has excessive build up. This could’ve been the root cause of the bearings becoming worn. The blower capacitor is reading extremely weak. There is a high chance of it going out this summer. The capacitor is having higher start up amps but there isn’t a tag to reference to. The contactor has burning present. This could result in a shorted or welded shut contactor.