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The long eco run
Eco programs wash at lower temperatures and stretch the cycle, sometimes to three hours or more. They are a good choice for everyday loads and are often selected without a second thought. If E27 only appears on eco, the code may be tied to something about the way that program behaves.
Reading the code
For this Bertazzoni dishwasher E27 has no single confirmed meaning across models. The eco observation is a clue about where to look, not a diagnosis. The program choice changes the water temperature the machine aims for and the length of the run, so the same fault can show on one program and stay hidden on another.
Compare cycles
| Cycle you ran | If E27 appears |
|---|---|
| Eco or long low-heat wash | Note it and compare with a normal cycle |
| Normal wash | The code is not tied to the eco program |
| Quick wash | Timing or load size may be a factor |
What owners notice
With an eco cycle, dishes often come out cooler and wetter, since the lower temperatures leave less heat for drying. That can make an ordinary cycle look like a drying fault. Using the rinse aid and opening the door at the end bring the result closer to normal.
Try before you worry
Run the next three loads on a normal setting and see whether E27 appears. If it does not, the eco program is the context to mention. If it does, eco is not the issue and a simple settings change will not fix it.
Also check that the dishwasher is not being run through a smart plug or a timer outlet, since cutting power at certain times can make a long cycle appear to fail.
Technician territory
If E27 shows on all programs, the heating circuit and its temperature sensing are tested inside the machine. A technician measures those against the specification for the model, with the unit powered, which is unsuitable for owners. The temperature sensor reports water heat to the control and the heating element is the part it switches, so both are involved from the start of a wash. Diagnosis comes first, followed by a written estimate and your approval before replacement.
Share which cycle names you used and how long each ran, as it helps narrow down the stage.
What to write down
Record the cycle name, how long it ran before the code, and whether the dishes were cool or warm when you opened the door. Add whether you use a heated-dry or extra-rinse option. These small points let a technician decide quickly whether the heating stage or the program choice deserves attention first.
Frequently asked questions
No, but lower temperatures leave dishes damper. Use rinse aid and open the door.
It is a fair test to run normal cycles for a few loads and compare.
It can interrupt a cycle if it cuts power, so avoid using one on a dishwasher.
Model compatibility: Bertazzoni reuses codes across series and model years, so E27 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
