No heat whole home. Found furnace cycling on and off with error code present. Upon inspection found loose wire plug on control board for ignitor and inducer motor. The heat exchanger is cracked and has single wall flue pipe with asbestos tape and improper connection of water heater vent, ac is dirty and system lacks adequate flood protection. Customer is getting quote to replace equipment tomorrow morning at 8am. Current part availability is unknown due to manufacturer closed for day. Will update quote tomorrow morning and resend with availability.