I replaced the air filters with ones provided by the customer. I checked the electrical wiring and electrical systems, including auxiliary heat strips, all are within specification. I checked the flow rate and heat of extraction on the Geo unit and pressurized the ground loop to 65psi. I checked defrost cycle on the Amana heat pump. Both units have normal temperature rise in heat pump modes. Units are operating normal. Customer informed me that the condensate drain line that both units drain into, in the basement was clogged. I confirmed this and cut into the drain pipe where it lies against the floor and luckily I was able to remove the clogg which was under the concrete slab with AC Drain Sucker. I poured a few gallons down the drain to make sure it didn’t back up. I glued drain back together with a coupling where I had cut into it.