Upon arrival customer stated that system was running non stop and not turning off. After inspection of system found that unit had a failed thermostat. Thermostat was allowing heat and ac to run at both. Changed thermostat under 2 year warranty from when we installed it. Checked over all operations of system cleaned flame sensor, cleaned pressure switch tube port, changed 16x25x1 filter. Did not find any other issues with system tested unit in both heat and ac and everything is working properly.