Adler ice maker shows E10; unit beeps and stops after attempting to drain the reservoir.

Safety first: Unplug the unit. Be prepared for water spillage when disconnecting drain lines.

• Inspect external drain: Check the floor drain or standpipe for blockages. Clear any obstructions.
• Check drain hose routing: Ensure the Adler drain hose has a continuous downward slope with no kinks or loops that can trap water.
• Clean drain hose: Disconnect the hose from the ice maker and flush it with hot water to remove scale and debris.
• Test drain pump (if equipped): Access the Adler drain pump under the reservoir. During a drain cycle, verify that voltage is supplied to the pump. If voltage is present but the pump does not run or is noisy, replace the pump.
• Reassemble and test: Reconnect all hoses securely, restore power, and run a cleaning or drain cycle to confirm E10 is resolved.