Common problems with ice machines include clogged water lines, which can lead to poor water flow, and a dirty evaporator, affecting ice production. Another issue is low refrigerant levels, causing the machine to overheat. Malfunctioning thermostats can lead to inconsistent ice making, while broken water pumps prevent proper water circulation. A faulty ice maker sensor can stop ice production altogether. Lastly, ice machines can have issues with their defrost system, leading to ice buildup. If you're experiencing ice machine issues, contact The Appliance Technician for reliable repairs and maintenance.