Bosch · Dryer Serious

E09 — Electronics Fault

Per Bosch's official US error-code page, E09 (grouped with E08, E24, E25, E28, E90) means there is an electronics fault/error. Bosch states this fault can only be eliminated by an authorized technician — it does not specify a board-to-board communication failure or any other single component.

Keep using it?
Limited use only
DIY difficulty
Moderate
Verified against
bosch-home.com ↗

How to fix it

  1. Power-cycle the dryer (unplug or switch off at the breaker for 10 minutes) to rule out a transient fault.
  2. If E09 returns, Bosch's official guidance is that this fault can only be eliminated by an authorized technician — schedule service rather than replacing parts yourself.

Why it happens

Typical signs: E09 shown on the display · Dryer stops or will not start a cycle · Display or buttons may behave erratically depending on model

  • Electronics fault Bosch's official guidance does not specify the exact component — it states only that this requires an authorized technician to resolve.

More Bosch dryer codes

E01 E01 — Heating Circuit / Heater Relay Fault E02 E02 — Drive Motor Fault E03 E03 — Condenser / Lint Filter Blockage E04 E04 — Water Container Full E05 E05 — NTC Temperature Sensor Fault E06 E06 — Heating Circuit Fault

All Bosch codes → All dryer codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: bosch-home.com.