Bosch Series 6 WAU28PH9 — Error codes & fixes
Troubleshooting guide for the Bosch Series 6 WAU28PH9. Diagnose an error code and find the fix.
E01 / Door not locked
e01The machine will not start because the door lock is not engaging, often from a worn latch or a misaligned door.
Source: ProductDB new-categories research catalog
Confidence: 90%
Verified Aug 8, 2026
E02 / Drainage problem
e02Water is not draining, usually from a blocked drain filter, kinked hose or a faulty drain pump.
Source: ProductDB new-categories research catalog
Confidence: 90%
Verified Aug 8, 2026
E03 / Water inlet fault
e03The machine is not filling with water, often from a closed tap, blocked inlet filter or faulty inlet valve.
Source: ProductDB new-categories research catalog
Confidence: 90%
Verified Aug 8, 2026
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