Bosch · Washer Moderate

E28 — / F28 — Flow Sensor Issue

Bosch's official US washer codes use an E:XX / F-code / icon format; a bare 'E28' is not in the official US list. The 'flow sensor issue' explanation below is not confirmed on Bosch's US consumer page — verify against your model's manual.

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Verified against
bosch-home.com ↗

How to fix it

  1. Confirm the supply is open and the inlet screens are clean.
  2. If E28 persists, the flow sensor needs to be tested/replaced.

Why it happens

Typical signs: Fill/flow problems · E28 shown

  • Faulty flow meter/sensor The flow sensor has failed.
  • Sensor wiring A harness fault to the sensor.
  • Restricted fill A blocked inlet affecting the flow reading.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Bosch Washer Flow Sensor Common replacement
    Amazon →

More Bosch washer codes

E01 E01 — Door Lock Fault E02 E02 — Motor Fault E03 E03 — Door Lock Fault E04 E04 — Water Inlet Fault E05 E05 — Heating Element Fault E06 E06 — Door Lock Circuit Fault

All Bosch codes → All washer 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.