E01
Bosch Dryer
Severity: ModerateWhat Does This Error Mean?
The E01 error means your Bosch dryer's NTC temperature sensor has a fault. This sensor monitors the heat inside the drum to prevent overheating. The dryer will stop running as a safety measure.
Affected Models
- Bosch Series 4 Dryer
- Bosch Series 6 Dryer
- Bosch Series 8 Dryer
- Bosch Benchmark Series Dryer
Common Causes
- NTC temperature sensor has failed or is out of range
- Sensor wiring has come loose or is damaged
- Dryer is overheating due to blocked airflow or lint buildup
- Thermal fuse has blown, affecting sensor readings
- Control board fault causing false sensor error
How to Fix It
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Unplug the dryer from the power outlet.
Wait at least 10 minutes before plugging back in. This lets the dryer cool down and resets the electronics.
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Clean the lint filter thoroughly.
A clogged lint filter is a very common cause of overheating, which can trigger E01. Pull out the filter and remove all visible lint.
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Check the dryer's exhaust vent at the back of the machine and at the wall exit.
A blocked vent traps hot air inside and causes the sensor to fault. Clear any lint, kinks, or obstructions from the vent hose.
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Plug the dryer back in and run a short cycle.
If E01 does not return during a normal load, the overheating was the cause and is now resolved.
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If E01 returns even with clean filters and vents, the NTC sensor itself needs to be replaced.
The NTC sensor is usually located near the heating element or air outlet. Your model number is on a sticker inside the door opening.
When to Call a Professional
If clearing lint and resetting does not fix E01, the sensor or thermal fuse needs testing with a multimeter. This is best handled by a qualified appliance technician.
Frequently Asked Questions
Is it safe to keep using my Bosch dryer with an E01 error?
No — stop using it immediately. E01 means the overheating protection system has detected a problem. Continuing to run the dryer risks a fire or further damage.
How often should I clean my Bosch dryer's lint filter to prevent E01?
Clean the lint filter after every single load. This is the single most important maintenance step for any dryer. Also clean the internal lint trap (if your model has one) every few months.
What is an NTC sensor and why does it matter?
NTC stands for Negative Temperature Coefficient — it is a type of temperature-measuring resistor. As temperature rises, its electrical resistance drops in a predictable way. The dryer's control board reads this resistance to know the internal temperature.