E6 appears and the unit stops making ice; water may not circulate over the evaporator.

Safety first: Unplug the ice maker and drain water before removing the pump.

Steps to fix E6:

• Check water level: Ensure the reservoir is filled to the proper level. Some Silonn models will show E6 if the pump runs dry.
• Inspect the pump area: Remove the ice basket and inner cover to access the water pump located in or near the reservoir.
• Clean inlet screen: Remove any debris, scale, or slime from the pump inlet screen and reservoir. Rinse thoroughly with clean water.
• Check hoses: Verify that the circulation hose from the pump to the water distributor is not kinked, pinched, or blocked with mineral deposits.
• Test the pump: With the unit reassembled but still open, plug it in and start a cycle. Listen for the pump running and look for water flowing over the evaporator. If the pump is silent or just hums, it may be seized.
• Replace pump: If the pump does not run or is very weak, replace the recirculation water pump with a compatible Silonn part. Transfer any rubber grommets or mounting brackets from the old pump.

When to call a professional: If you are not comfortable disconnecting hoses or dealing with water inside the unit, seek professional service.