Bosch Dryer Error E12
⚡ Quick Answer: The Bosch dryer error code E12 indicates an overheating condition, which is commonly caused by restricted airflow. This may occur due to a clogged lin... ✅ DIY Fixable
What Does Error E12 Mean?
The Bosch dryer error code E12 indicates an overheating condition, which is commonly caused by restricted airflow. This may occur due to a clogged lint filter or a blocked vent, leading to insufficient heat during the drying cycle. The dryer may stop and display the code either during or after the heating process, affecting its performance.
Common Symptoms:
- Error E12 displayed on control panel during or after drying cycle
- Dryer stops and displays code before/after heating
- Dryer runs but error appears after some minutes
Possible Causes
- Restricted airflow due to clogged lint filter (high)
- Blocked or restricted external vent/exhaust duct (high)
- Faulty airflow/temperature sensor (thermistor) or thermostat leading to incorrect overheating detection (medium)
How to Fix Error E12
DIY Fix Clean lint filter and exhaust vent
- Disconnect dryer from power
- Remove and clean lint filter thoroughly
- Inspect and clean dryer exhaust vent for obstructions
- Check external vent hood and duct path for blockages
- Reconnect and test dryer
Technician Only Inspect airflow sensors and thermostatic components
- Disconnect power and remove access panels
- Inspect thermistor and high limit thermostat for continuity using multimeter
- Replace faulty thermistor/thermostat if readings are out of specification
- Ensure blower wheel spins freely and ducting inside unit is clear
- Reassemble and test dryer
Parts needed: thermistor, high limit thermostat
- If error persists after cleaning vents and filters
- If you detect damaged internal wiring or components beyond simple sensor/thermostat replacement
Next step
Choose the next step for E12
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Thermostat
Regulates temperature by turning the heating or cooling system on or off.
Model-compatible Dryer parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 3000W |
|---|---|
| component | Heating Element |
| resistance | 10-30 ohms |
| part_number | Bosch 00630259 |
| voltage_rating | 240V AC |
Common Questions
What does E12 error mean on Bosch dryer?
E12 indicates an overheating condition due to restricted airflow, often linked to a clogged lint filter or blocked vent.
Can I fix Bosch dryer E12 error myself?
Yes, you can clean the lint filter and exhaust vent to resolve E12 error.
How much does it cost to fix E12 error?
$50-$200, depending on whether a simple cleaning or parts replacement is needed.
When should I call a technician for E12?
Call a technician if the error persists after cleaning or if you notice damaged internal components.
Sources & References
Data last verified: 2026-07-25
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