VERIFIED
Back from a long trip
A dishwasher left alone for a month is not harmless. Water sits in the trap, seals dry out, and the supply valve may have been closed by a house sitter or by you before leaving. When you return and start a cycle, it is the first real test of a lot of parts that have been idle. The door gasket is the rubber seal around the tub opening and can stiffen when dry.
About the code
E13 has no single confirmed meaning that applies to every Bertazzoni dishwasher, so it should not be treated as a diagnosis. What the idle time does give you is a short list of ordinary explanations to rule out. Because the code has no confirmed meaning, what you observe during the fill is more useful than the number: whether water enters, how quickly, and whether the cycle continues.
Ordinary explanations after idle time
- The shut-off valve under the sink was closed before the trip.
- Stale water is still in the sump, and the machine reacts to it.
- The supply line has air in it, so the first fill is slow.
- A power interruption while you were away left the control in an odd state.
A gentle restart
Turn the valve fully open. Check the tub for standing water and smell. If the water is stale, scoop it out and wipe the sump area. Run the kitchen tap for thirty seconds so air clears from the line, then run a short rinse cycle with no dishes. Watch it fill.
If you smell something sour or see mold on the seal, wipe it down with warm soapy water first.
Water that sits and the Bay Area climate
Foggy, damp conditions near the coast can lead to mildew on door seals and lower trays if the door was shut tight for weeks. Leaving the door slightly ajar during future absences lets the tub dry out. That detail is not a cause of E13, but it makes the machine nicer to come back to.
Booking a visit
If E13 repeats during the fill on the rinse run, the inlet path, the level sensing and the wiring between them are what a technician measures. The level sensing is how the control knows how much water is in the tub. You receive a written estimate after diagnosis, and no repair goes ahead without your approval.
What to tell us about the idle period
Note how long the dishwasher was unused, whether the valve was closed, and whether power was off at any point. Those three facts let a technician rule out ordinary causes quickly, and they keep a simple restart problem from turning into a part order.
A house with a seasonal owner or a rental unit that sits empty between guests is common, and the same questions apply.
Frequently asked questions
A rinse first is sensible, and a cleaning cycle later helps if the tub smells.
No, but it can mislead a machine that checks water levels.
Many owners close it, which is fine as long as they reopen it before the first cycle.
Model compatibility: Bertazzoni reuses codes across series and model years, so E13 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
