Bosch Dryer Error E03

⚡ Quick Answer: The Bosch dryer error E03 indicates a malfunction in the heating element, often due to a condensation drainage issue. This error typically occurs when... ✅ DIY Fixable

What Does Error E03 Mean?

The Bosch dryer error E03 indicates a malfunction in the heating element, often due to a condensation drainage issue. This error typically occurs when the condensation drainage hose is blocked or kinked, or when the condensation tank is full, preventing proper drainage. As a result, the dryer may not produce heat, and the cycle may stop due to water accumulation. Addressing these issues is crucial to restoring your dryer’s functionality.

Common Symptoms:

  • Dryer displays E03 during operation
  • Condensation not draining properly
  • Cycle may stop due to water accumulation

Possible Causes

  • Blocked or kinked condensation drainage hose (high)
  • Full condensation tank (condensate unit) (high)

How to Fix Error E03

DIY Fix Check and clear condensation drainage hose

  1. Turn off and unplug the dryer.
  2. Locate the condensation drainage hose at rear or side of the dryer.
  3. Inspect the hose for kinks or bends and straighten them.
  4. Disconnect hose and check for blockages.
  5. Use a flexible brush to clear debris from the hose.
  6. Reconnect hose securely without kinks.
  7. Plug in and run a short cycle to verify the error is cleared.

DIY Fix Empty condensation tank

  1. Turn off dryer and locate the condensate tank.
  2. Pull the tank out slowly and keep upright.
  3. Pour out accumulated water.
  4. Replace the tank securely.
  5. Restart dryer to check if E03 clears.

Technician Only Inspect and potentially replace drainage components

  1. Verify hose condition and length to ensure proper routing.
  2. Check condensate pump (if present) for operation.
  3. Inspect internal drains for blockages or damage.
  4. Replace damaged hose or pump as needed.

Parts needed: condensation drainage hose, condensation pump (if applicable)

🛑 When to Call a Pro:
  • If repeated clearing of hose and emptying tank does not clear E03
  • If drainage components are damaged or leaking
  • If there are other error codes appearing concurrently indicating internal faults

Technical Specifications

wattage 3000W
component Heating Element
resistance 10-30 ohms
part_number Bosch 00420000
voltage_rating 240V AC

Common Questions

What does E03 error mean on Bosch dryer?

E03 error indicates a malfunction in the heating element, often due to a blocked drainage hose or a full condensation tank.

Can I fix Bosch dryer E03 error myself?

Yes, you can check and clear the condensation drainage hose or empty the condensation tank to resolve the E03 error.

How much does it cost to fix E03 error?

The estimated repair cost for the E03 error ranges from $30 to $150, depending on the parts needed.

When should I call a technician for E03?

Call a technician if clearing the hose and emptying the tank does not resolve the E03 error or if there are other error codes present.

Sources & References

Data last verified: 2026-01-16

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