VERIFIED
Water belongs inside the tub. If it ends up underneath, a switch in the base detects it, and the dishwasher shows E4 (also written E04). Bertazzoni defines it as overflow: some element of the dishwasher leaks.
Do this first
The manual puts two safety lines next to its error table, and they apply here.
- Turn off the main water supply before calling for service.
- If there is water in the base pan from an overfill or small leak, remove it before restarting the dishwasher.
Do not start another cycle while the pan is wet.
The manual’s six checks
| Check | Why it appears |
|---|---|
| Use of the detergent | Listed first in the manual |
| Whether the appliance is level | Listed second in the manual |
| The micro-switch | The detecting switch that moved is named here |
| The drain pump | Listed fourth in the manual |
| The amount of water filled | Listed fifth in the manual |
| Where the leakage is | Listed last in the manual |
The first two are things a homeowner can reasonably look at: the detergent used and whether the machine stands level. The rest need access to the parts.
Where it sits among related codes
- F1: overflow on the F-code models, with unplug-and-close-tap instructions
- F3: water that keeps coming in
- E1: a fill that is too slow rather than too much
FAQ about this code
Can I just dry the base and run it again? The manual only allows the restart after the water is removed. It still says to find where the leakage is.
Leak and overflow service in San Francisco
For an E4 on a Bertazzoni dishwasher, call (415) 692-0756 for service in San Francisco. Mention if water was on the floor and whether you closed the supply.
Model compatibility: Bertazzoni reuses codes across series and model years, so E4 / E04 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
