VERIFIED
Small things in a big way
A dishwasher door closes against a gasket and a latch, and a thin object in the wrong place can interfere with both. A tea towel draped over the open door, a pet leash, an apron string or a long spatula handle can end up pinched and keep the door from seating. The control notices and may display E28. The door switch is the contact that tells the control the door is shut, and a door resting slightly open keeps it from reporting that.
What can be said about E28
Bertazzoni has not published a single meaning for E28 that applies to every dishwasher model, so this page does not state one. The door and seal area is the sensible first place to look when a code coincides with something caught. A code that appears right after the door was closed on something is a stronger link than one with no obvious trigger.
Eyes-only inspection
- Open the door fully and run your eye around the gasket for a twist, a gap or a pinched edge.
- Check the strike and latch area for a food scrap or hardened detergent.
- Look along the top edge of the tub where the door seals for a dish tag or a stray lid.
- Make sure no rack wheel has jumped its rail and is sticking out.
After cleaning the seal
If you wiped the gasket with a strong cleaner or scrubbed hard, the rubber may have shifted. Gently press it back into its groove, working around the whole length. Do not use a knife or a sharp tool, which can cut it.
Avoid cleaning products with bleach on the gasket. They dry rubber and shorten its life.
Households with kids and pets
A child leaning on the open door or a dog nosing it can bend the hinge or knock the gasket. If that happens often, a visit may involve the hinge springs as well as the code. Keep the door closed when it is not in use.
When to call
If the door seals cleanly, nothing is trapped, and E28 persists, the door switch and its wiring need testing. A switch that reads open even though the door seems shut points toward alignment or the switch, rather than the wash itself. That requires removing the inner door panel, a job for a technician because wiring runs close to where water collects. We diagnose first, write up a written estimate, and replace nothing unless you approve.
Details for the technician
Note what was caught, how it was removed, and whether the code came straight away or the next day. If the gasket was recently replaced or cleaned, say so. A door problem that began at a known moment is usually quicker to trace than one that crept in slowly.
A photo of the gasket corners is helpful, because that is where twists usually form.
Frequently asked questions
A twisted or torn gasket can interfere with the door, so it is worth a careful look.
Yes, with your fingers only. Avoid tools.
That can mean a worn hinge or latch. Mention it when booking.
Not necessarily. If it keeps coming back, the signal needs testing.
Model compatibility: Bertazzoni reuses codes across series and model years, so E28 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
