E10
Bosch Power Supply / Voltage Fault

Bosch dryer displays E10 and may not start or may stop unexpectedly.

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Safety Warning

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.

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Possible Causes

Incorrect supply voltage, Loose power cord connection, Faulty terminal block, Internal power supply failure on control board

How to Fix / Troubleshooting

Safety first: Turn off the circuit breaker and unplug the dryer before inspecting electrical connections.

  • Verify supply voltage: Use a multimeter at the outlet or terminal block to confirm correct voltage per Bosch specifications (e.g., 240 V for many models).
  • Inspect power cord and terminal block: Remove the rear cover over the terminal block. Check for loose screws, burnt wires, or melted plastic. Tighten connections and replace damaged parts.
  • Check cord strain relief: Ensure the cord is properly clamped and not pulling on the terminals.

If external power and connections are correct, the internal power supply section of the main control board may be defective and require replacement.

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Repair Difficulty

Hard 4/5

Required Part

Power Cord and Terminal Block
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