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
How to fix it
- Confirm the supply is open and the inlet screens are clean.
- 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 replacementAmazon →
More Bosch washer codes
Frequently asked questions
What does the E28 code mean on a Bosch washer?
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.
What causes the E28 code on a Bosch washer?
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.
Is it safe to keep using a Bosch washer with a E28 error?
Yes, with caution. This is rated a moderate-severity fault.
How do I fix E28 on a Bosch washer?
Confirm the supply is open and the inlet screens are clean. If E28 persists, the flow sensor needs to be tested/replaced.
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.