Bosch Washing Machine Error Code E42 — Motor Malfunction
What this means
Error E42 indicates a malfunction in the washer's main drive motor. The motor may have failed windings, damaged wiring, or a problem with the motor control module on the control board. This prevents the drum from rotating in any cycle.
Step-by-step fix
4 stepsPower cycle the machine
Unplug for 10 minutes and try again. A temporary overload condition can trigger this error.
Check motor wiring
Inspect the wiring harness connections at the motor. Look for burned, melted, or disconnected wires.
Burnt smell near the motor usually indicates a serious failure.
Test motor windings
Use a multimeter to test the motor windings for continuity and resistance. Compare readings to the service manual specifications.
Inspect motor brushes
On brush-type motors, check the carbon brushes for excessive wear.
When to call a professional
Motor replacement requires disassembly of the washer. Professional service is strongly recommended.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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