Washer shows E19; often related to internal valve or dispenser system (i-DOS models)

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty internal dosing valve, Blocked i-DOS dispenser channels, Wiring issue to dosing valve, Control module fault

Safety first: Disconnect power.

Clean i-DOS system: Remove and thoroughly clean the i-DOS detergent and softener compartments according to the Bosch manual. Ensure no dried detergent is blocking channels.
Run cleaning program: Use the built-in drum clean or i-DOS cleaning cycle if available.
Inspect internal valves: Access the dispenser assembly and check the small solenoid valves for blockages or stuck plungers.
Replace faulty valve: If a dosing valve coil is open or the valve is stuck, replace the Bosch i-DOS valve assembly.

Hard 4/5

i-DOS Dosing Valve Assembly

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