Ice maker runs a cleaning cycle but does not seem to remove scale effectively.

Safety first: Disconnect power and follow all chemical safety instructions. Do not mix cleaners with other chemicals.

Steps:

• Use correct cleaner: Only use Manitowoc‑approved ice machine cleaner and sanitizer at the recommended concentration.
• Extend contact time: For heavy scale, run two consecutive cleaning cycles, manually brushing the evaporator and trough between cycles.
• Disassemble key parts: Remove the water distribution tube, trough covers, and other removable parts to soak and scrub them separately.
• Address water quality: Install or upgrade water treatment (filter/softener) to reduce future scale buildup.