Found humidistat and solenoid in working condition. Excessive water corrosion on supply connections and no water supply to solenoid. Diagnosed a faulty saddle valve. Will have to reschedule for repair. Customer may be interested in electronic filter and/or maintenance agreement. 10-23-19 Returned and replaced saddle valve. Cycled system in heat and tested humidifier. Additionally found a kink in black supply tubing between solenoid and humidifier and a clog. Repaired kink and was able to clear the clog. Cycled system in heat and tested humidifier. System is operating normally at this time.