Came out to perform the furnace and AC start up. Furnace: No gas leaks detected. Combustion readings were normal. No CO detected in the air Drain is working. High limit passed the safety check. Heat rise was 42°. AC: The unit wouldn’t start initially. After checking everything out, I found the thermostat was bad. I replaced the stat under full warranty. Charges were good. Subcool was 7° with a 17° temp split. All equipment is operating properly.