Find a local hvac company and get a fall tune up service. It is usually cleaning the flame sensor (builds up with dust), changing filter, turning on your humidifier, etc. I pay around $250 per system (2 furnaces and ACs) for a service contract: fall and spring service plus top of the list for emergency service. Shit happens, had a fuse blow on the control board for one of our 2 year old systems back in june 2021 during peak heat. They were out next day and ran a new wire from the AC since that had a short somewhere that blew the fuse. Worth it.