Performed a combo tuneup on a 2020 Lennox system. For the outdoor unit everything was chemically bathed and thoroughly washed. Checked pressures and temperature splits and both where in range. Checked all electrical components and everything was in range. For the indoor unit I checked the burners to confirm everything was lighting and running efficiently. Confirmed the inducer motor was running at correct amperage. Checked all ducting to make sure everything was sealed. Filters where not changed this visit. System was fully operational at time of departure.