⭐️ Check Cycle of System ⭐️
⭐️ Filter Check (filter extra) ⭐️
⭐️ Check and Adjust Burners ⭐️
⭐️ Efficiency Check ⭐️
⭐️ Blower Check ⭐️
⭐️ Check Limits and Safeties ⭐️
⭐️ Check Airflow ⭐️
⭐️ Check Thermostat ⭐️
⭐️ Check Vent and Intake ⭐️
⭐️ Check Heat Exchanges ⭐️