Bosch dryers are designed for efficiency, convenience, and long-lasting performance. However, like any appliance, they can sometimes encounter operational issues that trigger specific error codes. These codes act as built-in diagnostics to help identify problems quickly and prevent further damage.
Understanding what these error messages mean can help you troubleshoot issues faster and keep your dryer operating at peak performance. In some cases, replacing specific Bosch Dryer Parts may be necessary to restore full functionality and ensure reliable drying results.
Below is a helpful guide to common Bosch dryer error codes, their potential causes, and recommended troubleshooting steps to get your appliance back on track.
E01 – Lint Filter Blocked
Issue:
The dryer has detected a blockage in the lint filter, which restricts airflow during the drying cycle. This can lead to inefficient drying, longer cycle times, or even overheating. The appliance displays error code E01 as a preventive measure to maintain safe operation and optimal performance.
Possible Causes:
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A full or clogged lint filter that hasn't been cleaned after multiple drying cycles
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Accumulated lint or debris in the filter housing or air ducts
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Moisture buildup causing residue or fine particles to adhere to the filter mesh
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Neglecting to rinse the lint filter periodically with warm water
Solutions:
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Remove the lint filter from the dryer and clean off all visible lint and debris. This should be done after every drying cycle.
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Once a week, rinse the lint filter under warm running water to clear fine particles and prevent buildup. Let it dry completely before reinserting it.
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Inspect the filter housing and internal vent area for any remaining lint or obstructions. Use a vacuum attachment or soft brush to remove hard-to-reach lint.
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If airflow still seems restricted, check the dryer’s external vent and ductwork for blockages or excessive lint buildup.
E02 – Lint Filter Still Blocked
Issue:
Error code E02 indicates that the dryer still detects restricted airflow due to lint buildup—typically in cases where the lint filter was not adequately cleaned, or lint has accumulated in other areas of the airflow system. This may occur shortly after an E01 warning if the underlying issue wasn’t fully resolved.
Possible Causes:
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Incomplete or insufficient cleaning of the lint filter after an E01 alert
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Residual lint trapped deeper in the filter housing or vent path
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Moisture or fabric softener residue creating a film on the lint screen, reducing airflow
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Clogged dryer vent hose or exhaust duct beyond the lint filter
Solutions:
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Re-clean the lint filter thoroughly. Remove it from the dryer and rinse it under warm water to eliminate fine lint particles or any fabric softener residue that may block airflow. Allow it to dry completely before reinstalling.
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Use a soft brush or vacuum to clean the inside of the lint filter compartment and surrounding areas.
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Check the external dryer vent and ductwork for obstructions or lint buildup. A restricted vent can cause poor airflow and repeated filter warnings.
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If you've cleaned the filter and airflow path thoroughly but the E02 error persists, a clogged moisture sensor or airflow sensor could be to blame and may need professional service.
E06 – Heating Circuit Fault
Issue:
Error code E06 indicates a malfunction within the dryer's heating circuit. This system is responsible for generating the heat needed to dry clothes effectively. When the control board detects an issue in this circuit—such as irregular current flow, a short, or an open connection—it triggers this fault to prevent further damage or unsafe operation.
Possible Causes:
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A failed heating element that no longer produces heat
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Damaged wiring or loose connections between the heating element and the main control board
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Faulty temperature sensors or thermal fuses disrupting the heating cycle
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A defective control board that mismanages power to the heating components
Solutions:
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Because the heating circuit involves high-voltage components and internal wiring, E06 is not a user-serviceable error.
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To prevent risk of injury or damage to the appliance, it is strongly recommended to stop using the dryer and contact a certified Bosch service technician.
E08 – Electronics Fault
Issue:
Error code E08 signals an internal electronics fault within the dryer. This error indicates a problem with the appliance’s control system, such as the main control board or associated electronic components, which are responsible for managing the dryer's functions.
Possible Causes:
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A malfunctioning main control board that is failing to communicate or regulate properly
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Faulty wiring or loose connections within the electronic circuitry
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Power surges or electrical disturbances that have affected the control system
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Defective sensors or other electronic modules linked to the control board
Solutions:
Due to the complexity and safety considerations involved with electronic system faults, E08 errors require diagnosis and repair by a qualified Bosch technician. Attempting to repair or replace electronic components without professional expertise may cause further damage or void warranties.
E09 – Electronics Fault
Issue:
Error code E09 indicates a fault within the dryer’s electronic control system. This error often relates to problems with the control board or electronic components responsible for managing key dryer functions.
Possible Causes:
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Defective or damaged main control board
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Faulty wiring or loose connections inside the electronics module
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Electrical disturbances impacting the control circuitry
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Malfunctioning sensors communicating with the control system
Solutions:
Because this error involves sensitive electronic parts, E09 must be diagnosed and repaired by an authorized Bosch technician to ensure safe and proper resolution.
E24 – Electronics Fault
Issue:
Error code E24 indicates an internal electronics fault within the dryer. This error points to a malfunction in the control system or electronic components critical to the dryer's operation.
Possible Causes:
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Faulty main control board or electronic module
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Damaged wiring or poor electrical connections inside the dryer
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Power irregularities affecting electronic circuits
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Defective sensors or communication errors within the control system
Solutions:
Because the issue involves complex electronics, E24 requires professional diagnosis and repair by a Bosch-authorized technician to restore safe and reliable operation.
E25 – Electronics Fault
Issue:
Error code E25 signifies a fault detected in the dryer's electronic control system. This indicates a malfunction in key electronic components or the main control board that manage the appliance’s functions.
Possible Causes:
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A defective control board
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Loose or damaged wiring within the electronic system
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Electrical interference or power fluctuations affecting the control circuits
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Faulty sensors or communication errors within the electronic modules
Solutions:
Due to the technical nature of this error, E25 should be diagnosed and repaired only by an authorized Bosch technician to ensure proper and safe service.
E28 – Electronics Fault
Issue:
Error code E28 indicates a problem with the dryer’s electronic control system. This fault points to a malfunction in the main control board or related electronic components that regulate the dryer's operation.
Possible Causes:
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Faulty or damaged control board
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Wiring issues or loose connections within the electronic circuitry
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Electrical disturbances affecting control system performance
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Defective sensors or communication faults between electronic modules
Solutions:
Because this error involves complex electronics, E28 requires professional diagnosis and repair by a Bosch-authorized technician to ensure safe and effective resolution.
E90 – Electronics Fault
Issue:
Error code E90 signifies an internal electronics fault within the dryer. This error reflects a failure in the control system or one of the electronic components essential for proper dryer function.
Possible Causes:
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Defective main control board or electronic module
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Damaged wiring or loose electrical connections
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Power fluctuations impacting the control electronics
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Faulty sensors or communication errors within the control system
Solutions:
Due to the complexity of this fault, E90 must be diagnosed and repaired by an authorized Bosch technician to ensure safe and reliable operation.
Bosch Dryer Troubleshooting Tips
To help prevent error codes and keep your Bosch dryer running smoothly for years to come, follow these essential maintenance and care tips:
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Clean the lint filter after every drying cycle:
A clogged lint filter reduces airflow and drying efficiency and can cause error codes like E01 and E02. Regularly removing lint helps your dryer run safely and efficiently. -
Rinse the lint and fluff filter weekly:
Washing the lint filter with warm water removes fine particles and residue that accumulate over time, improving airflow and reducing sensor errors. -
Inspect the dryer vent and ductwork periodically:
Blocked or restricted vents can cause poor drying performance and trigger electronic faults. Check for lint buildup or obstructions and clean vents every 6–12 months to maintain proper airflow. -
Avoid overloading the dryer:
Overloading stresses the motor and heating elements, potentially causing overheating or mechanical faults. Follow the manufacturer’s load size recommendations for optimal performance. -
Use the correct drying settings for your laundry:
Selecting inappropriate heat or cycle settings may cause the dryer to overheat or malfunction. Use the recommended settings based on fabric type to prevent unnecessary wear and error codes. -
Keep the dryer level and stable:
An uneven dryer can cause excessive vibration and sensor errors. Use a level to ensure your dryer is properly balanced, adjusting the feet if needed. -
Ensure proper power supply:
Plug your dryer into a dedicated, grounded outlet to prevent electrical faults. Avoid using extension cords or overloaded circuits, which can lead to errors or damage.
By following these maintenance tips, you can reduce the chance of errors and improve the safety, efficiency, and lifespan of your Bosch dryer.
