2 system home care. The heating and cooling was tested . The condensate pump on basement unit was hung up and did not want to pump correctly when filled with water. I also installed a gen 4 google thermostat that the customer provided. On the main level furnace the heat exchanger does have hot spots and is a sign that the heat exchanger will fail . There was no other components bad . The filters did not need to be changed. Left 2 16x25x1 filters for customer.