A Bosch Dryer displays a E21 error code when a Configuration Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E20 error code when a Configuration Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E18 error code when a NTC Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E17 error code when a NTC Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E15 error code when a Heater Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E13 error code when a Heater Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E12 error code when a Fluffing or Vent Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E11 error code when a Fluffing or Vent Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E1 error code when a Pump Error has been detected by the internal electronic diagnostics.

A Bosch Dryer displays a E03 error code when a Heater Error has been detected by the internal electronic diagnostics.