Bosch Dryer Error E08 — What It Means & How to Fix It

What Does This Error Mean?

Error E08 means the dryer's fan motor has stopped working or is not performing correctly. The fan circulates air through the drum — without it, the dryer cannot dry clothes and will overheat. E08 is a hardware fault that usually requires a technician to inspect or replace the fan motor.

Affected Models

Bosch WTW87565GB
Bosch WTH84000GB
Bosch WQB145B0GB
Bosch WTW876H0GB
Bosch Serie 8 Heat Pump Dryer

Common Causes

Fan motor has seized or burned out
Foreign object (coin, button, or clothing item) is jamming the fan blade
Wiring connector on the fan motor has come loose
Fan motor capacitor has failed, preventing the motor from starting
Control board has stopped sending the correct signal to the fan motor

How to Fix It

Unplug the dryer from the power socket and wait 60 seconds before any further steps.

Always disconnect power before investigating any fault with moving components.
Check if anything was left in the drum — coins, buttons, or small items can pass through the lint filter and jam the fan.

Listen for any rattling noise when you rotate the drum by hand — this indicates a foreign object.
Plug the dryer back in and start a short cycle — listen for the fan starting up in the first 30 seconds.

A functioning fan makes a steady airflow sound — silence or grinding indicates a motor or jam issue.
Check the condenser and filter are clean — a blocked airflow path increases load on the fan motor and can trip E08.

A blocked condenser makes the fan work significantly harder and can trigger a motor fault warning.
If the fan does not start, contact Bosch service or a qualified appliance technician.

Do not continue running the dryer without a working fan — overheating will cause additional damage.
Ask the technician to check the motor capacitor and wiring connectors before replacing the full fan motor assembly.

A failed capacitor is cheaper to replace ($20–$50) than the full motor ($100–$200).

When to Call a Professional

E08 is a critical fault that requires a technician — fan motor replacement involves opening the dryer cabinet and working with electrical components. A Bosch engineer can test whether the motor, capacitor, or wiring is the actual fault. Fan motor replacement costs $150–$300 in parts and labor depending on the model.

Frequently Asked Questions

Can I keep using my Bosch dryer if it shows E08?

No — do not use the dryer when E08 is displayed. Without the fan running, the dryer cannot move air and will overheat rapidly. Continuing to run the dryer with E08 can cause a fire hazard or damage the heating element and heat pump.

Is E08 covered under Bosch dryer warranty?

Yes — if the dryer is within Bosch's standard 2-year warranty, fan motor faults are covered. Contact Bosch customer service with your model number to arrange a warranty repair. Extended coverage plans may provide additional protection beyond the standard period.

What does a failed fan motor sound like on a Bosch dryer?

A failing fan motor may produce a humming sound but no airflow as the motor tries to start but cannot. A seized motor is completely silent — no hum, no airflow. A motor with a foreign object jam produces grinding, rattling, or scraping sounds when the cycle starts.