Error code reference

Bosch Dryer Error Code F:04

Blocked fluff strainer, air cooler, air circuit, water passages or condensation tank; or ambient temperature above 30°C; or short-circuit/shunt in conductivity system; or maximum running time of 240 min reached.

SourceBosch Tumble Dryer - Service Manual: WTE86300USp. 41

Bosch codes Bosch dryer codes

Diagnostic procedure

The full F:04 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check air passages. Check and clean water passages. Ensure cooling air circulation is adequate. Start test programme for conductivity measurement.

SourceBosch Tumble Dryer - Service Manual: WTE86300USp. 41

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Where this code is documented

2 manuals in the MyPros+ library document this code for Bosch dryer.

Models covered by the manuals that document this code

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The full F:04 procedure

Where this code is documented

Models covered by the manuals that document this code

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