Bosch Dryer E03 Error Code

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What it means

Bosch says E03 indicates a blocked or kinked condensation drain hose.

Try this first

Inspect the condensation drain hose and remove any blockage or kink.

Can I keep using it?⚠ Bosch says E03 indicates a blocked or kinked condensation drain hose.

Repair usually required?⚠ Follow only the manufacturer-backed checks listed on this page before replacing parts.

If the error keeps returning

Use the linked official manufacturer support source for additional model-specific guidance.

Official source

Troubleshooting information verified against manufacturer support documentation.

View manufacturer support page →

Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.

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Bosch Dryer E03: Quick Answer

What it means: Bosch says E03 indicates a blocked or kinked condensation drain hose.

First thing to check

Inspect the condensation drain hose and remove any blockage or kink.

Can I keep using it?

Bosch says E03 indicates a blocked or kinked condensation drain hose.

Repair outlook

Follow only the manufacturer-backed checks listed on this page before replacing parts.

If the code remains

Use the linked official manufacturer support source for additional model-specific guidance.

Model note: Error-code meanings and procedures can vary by model and model year. Confirm the code against the documentation for your exact appliance before replacing parts.

Manufacturer reference: bosch-home.com