Ice maker shows EC09 or service code 09 and indicates a low water or no water condition even when the reservoir appears full.

Safety: Disconnect power before servicing. Use only approved cleaners on stainless and plastic parts.

Steps to address EC09:

• 1. Clean the reservoir: Drain the reservoir and remove mineral deposits using Sub-Zero-approved ice machine cleaner. Rinse thoroughly.
• 2. Clean level probes or sensor: If your model uses metal probes, gently clean them with a soft brush and cleaner to remove scale. For electronic sensors, wipe the sensing surfaces carefully.
• 3. Inspect wiring: Check the harness from the level sensor to the control board for secure connections and damage.
• 4. Test sensor (if applicable): Follow the tech sheet procedure to test the sensor's resistance or signal. Replace the sensor if it fails tests.
• 5. Control board: If the sensor and wiring are good but EC09 persists, the control board may be at fault and should be evaluated by a professional.