E04
What code E04 means on a Bosch dishwashers, what causes it, and which part to check first.
● SEVERITY: LOW
Bosch E04 means: Flow Sensor Error. The documented cause is: Clogged or calcified flow sensor · Failed flow sensor (part 00611317) · Low water pressure · Partially closed water supply valve
What E04 means
Flow Sensor Error
The display shows E04 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by easybear-appliancerepair.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Clogged or calcified flow sensor |
| Failed flow sensor (part 00611317) |
| Low water pressure |
| Partially closed water supply valve |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.
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Frequently asked questions
What does E04 mean on a Bosch?
Flow Sensor Error The documented cause is: Clogged or calcified flow sensor · Failed flow sensor (part 00611317) · Low water pressure · Partially closed water supply valve
Can I fix E04 myself?
It depends on the part involved: Clogged or calcified flow sensor · Failed flow sensor (part 00611317) · Low water pressure · Partially closed water supply valve Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Bosch use other codes on this appliance?
Yes: we document 16 other codes for Bosch on this dishwashers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.