Performed cooling maintenance on a 3 zone mini split and a standard split heat pump Filters for all 3 indoor heads for the mini split are clean Coils are clean Put Condensate drain treatment in all 3 drain pans Washed outdoor coil Outdoor fan was making a rattling noise: removed cover and tightened fan blade nut. The washer between the nut and blade was rattling Refrigerant charge is OK Lennox heat pump with natural gas furnace Set Outdoor lockout for heat pump to 55⁰ Washed outdoor coil Capacitor in spec Refrigerant charge is not quite to spec. Charging chart calls for 3⁰ subcool, the actual measurement was 0.8⁰ Cooling-wise it is performing well Discussed condition and decided not to put any money into a 23yr old system that is cooling the space satisfactorily. Filter for the furnace is a washable type and is in OK condition Condensate drain is flowing properly Both systems are operating OK at this time
