E18
What code E18 means on a Bosch dishwashers, what causes it, and which part to check first.
● SEVERITY: MEDIUM
Bosch E18 means: Water flow into the dishwasher. The documented cause is: Indicates there is an issue with water flow into the dishwasher. The cause of this error code happens when the water level is too low, or water is not being pumped correctly
What E18 means
Water flow into the dishwasher
The display shows E18 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by applianceaid.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Indicates there is an issue with water flow into the dishwasher |
| The cause of this error code happens when the water level is too low, or water is not being pumped correctly |
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.
Find a specialist
TroubleAtlas Pro
TroubleAtlas Certified
What is the TroubleAtlas Score?
Beyond fault codes and specialists, we rate the reliability of appliance brands and models — a transparent score that owes nothing to the manufacturer. The reference to check before you buy or repair.
See all appliance scores →TA YouTube Channel
Frequently asked questions
What does E18 mean on a Bosch?
Water flow into the dishwasher The documented cause is: Indicates there is an issue with water flow into the dishwasher. The cause of this error code happens when the water level is too low, or water is not being pumped correctly
Can I fix E18 myself?
It depends on the part involved: Indicates there is an issue with water flow into the dishwasher. The cause of this error code happens when the water level is too low, or water is not being pumped correctly 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 14 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.