Bosch Dryer Error Code E05 — Temperature Sensor (NTC) Malfunction
What this means
Error E05 indicates the NTC temperature sensor (thermistor) has failed or is reading out of range. This sensor monitors the internal dryer temperature to regulate heat. A faulty sensor can cause the dryer to overheat or not heat at all, as the control board cannot properly manage the heating element.
Step-by-step fix
4 stepsAccess the sensor
Unplug the dryer and remove the rear or side panel to locate the NTC sensor, usually mounted near the exhaust duct inside the dryer.
Test the sensor
Disconnect the sensor and measure resistance with a multimeter. It should read approximately 10,000 ohms at room temperature.
The reading should change when you warm the sensor with your hand.
Check wiring
Inspect the wiring harness between the sensor and control board for damage or loose connections.
Replace if faulty
If the sensor reads open (infinite resistance) or shorted (zero ohms), replace it.
Always use a Bosch-specified replacement sensor for accurate temperature readings.
When to call a professional
If the sensor tests normal but the error persists, the control board may need professional diagnosis.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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