Bosch washer Error Code E21

Motor Error

What does E21 mean?

Drive motor is not operating correctly.

Common causes

Failed motor
Motor brushes worn
Control module failure
Wiring issue

Diagnostic & testing steps

1. Check motor connections
2. Test motor windings
3. Check motor brushes (if applicable)
4. Test control module

Tools required

Multimeter

OEM parts & part numbers

Drive Motor, Motor Control Module

Part numbers: 00145757

Safety warning

⚠️ Disconnect power before testing motor

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