E3 — Dispenser User Interface Fault
Per Bosch's official US error-code page, E03 means there is a dispenser user interface fault/error. Bosch's first recommended step is to reset power at the breaker for 30 seconds.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Moderate
- Verified against
- bosch-home.com ↗
How to fix it
- Reset power to the breaker for 30 seconds, per Bosch's official instructions.
- If the fault returns, unplug the refrigerator and inspect the wiring between the dispenser user interface and the main control board.
- If wiring tests good, the dispenser user interface board is the more likely failure point and may need replacement.
Why it happens
Typical signs: E3 displayed · Dispenser panel buttons unresponsive · Dispenser display blank or frozen
- Dispenser user interface board fault The dispenser's own control/display board has failed or lost communication with the main board.
- Loose or damaged wiring to the dispenser UI A disconnected or damaged connector between the dispenser panel and the main control board can produce this fault.
Replace your water filter
A clogged or overdue water filter is a common cause of low water and ice flow on Bosch refrigerators — they are meant to be changed about every 6 months. The OEM-style filter that fits most Bosch refrigerators is the BORPLFTR10 ($60-75 OEM, $25-35 compatible).
- Bosch BORPLFTR10 refrigerator water filter OEM water filterAmazon →
Not sure which filter fits your model? See the full compatibility guide →
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 refrigerator dispenser user interface board Common replacementAmazon →
More Bosch refrigerator 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.