Bosch Dishwasher E21 Error Code

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What it means

Bosch identifies dishwasher e21 as heat pump is blocked.

Try this first

Turn the dishwasher breaker off for 30 seconds, then restore power.
If the issue remains, contact Bosch Customer Support.

Can I keep using it?⚠ Bosch identifies dishwasher e21 as heat pump is blocked.

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

If the error keeps returning

Use the linked official manufacturer support article for model-specific details and service 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 Dishwasher E21: Quick Answer

What it means: Bosch identifies dishwasher e21 as heat pump is blocked.

First thing to check

Turn the dishwasher breaker off for 30 seconds, then restore power.

Can I keep using it?

Bosch identifies dishwasher e21 as heat pump is blocked.

Repair outlook

Follow only the manufacturer-backed checks listed below before replacing parts.

If the code remains

Use the linked official manufacturer support article for model-specific details and service 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