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Error code reference

Bosch Dryer Error Code E:01

Dryer overheating fault due to restricted airflow

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What the E:01 error code actually means

Your Bosch dryer got too hot and shut itself down as a safety measure. This usually happens because something is blocking the airflow, like a clogged lint filter or a kinked dryer vent hose. The dryer needs to cool down before you do anything else, and then the blockage needs to be found and cleared before running it again.

Diagnostic procedure

The full E:01 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Immediately stop dryer by rotating cycle selector knob to Off, open door, remove and clean lint filter, let dryer cool down, then check exhaust duct length and number of elbows.
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Most common causes of E:01

Ranked by how often they cause this code
  1. 1Clogged lint filter
  2. 2Blocked or restricted exhaust duct
  3. 3Obstructed air damper or vent termination cap
  4. 4Worn or damaged felt drum seal
  5. 5Lint accumulation inside the dryer cabinet

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Questions people ask about E:01

What does E:01 mean on a Bosch dryer?
E:01 is an overheating fault that indicates the dryer's internal temperature exceeded safe limits due to restricted airflow. The dryer shuts down automatically as a safety measure. Common sources of the restriction include a clogged lint filter, a blocked exhaust duct, a stuck air damper, or a worn felt drum seal that allows air to leak past the drum. The fault must be resolved before the dryer will operate normally again.
Is it safe to keep using my dryer when E:01 is showing?
No, continuing to run the dryer with an active E:01 fault is not safe. The code indicates that the dryer has already overheated, and running it again without resolving the airflow restriction risks further heat buildup, which can damage internal components or create a fire hazard. The dryer should remain off until the cause of the restriction is identified and corrected.
How much does it cost to repair a Bosch dryer showing E:01?
If the fault is caused by a clogged lint filter or a blocked exhaust duct, the repair cost may be minimal, covering only your time or a basic duct cleaning service in the range of $75 to $150. If the felt drum seal is worn and needs replacement, parts and labor costs typically range from $100 to $250 depending on labor rates in your area. More extensive internal lint buildup requiring cabinet disassembly may fall in a similar range for a professional service call.
How do I fix the E:01 error on my Bosch dryer?
Start by rotating the cycle selector knob to Off immediately, then open the door and remove the lint filter for cleaning. Allow the dryer to cool completely before doing anything else. After cooling, inspect the full length of the exhaust duct for kinks, crushes, or blockages, and check that the exterior vent cap opens freely. If the duct and filter are clear, inspect the felt drum seals for wear or separation, as a damaged seal will need to be replaced.
Will resetting the dryer clear the E:01 error code?
Rotating the selector knob to Off and allowing the dryer to cool down may allow it to restart, but the E:01 fault will return if the underlying airflow problem has not been fixed. Resetting without addressing the root cause is not a solution. The lint filter, exhaust duct, vent termination, and drum seals must all be inspected and corrected before the dryer will operate reliably without retriggering the fault.

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