VERIFIED
After the dinner party
The pattern is easy to recognize. You hosted a crowd, packed the dishwasher with plates, serving bowls and a roasting pan, and pressed Start. By morning the display says E16 and the plates feel sandy under your fingers. The food that did not make it down the drain is still circulating.
Where E16 stands
E16 has no confirmed single meaning across all Bertazzoni dishwashers, so no failed part is named here. It is a flag to check how water is moving around the machine, and your hands can tell a lot about that. Water has to be drawn in, circulated through the spray arms and then drained, and a problem at any one of those steps can leave grit behind.
Compare what you see
| What you find | What it suggests |
|---|---|
| Grit on everything, filter packed with food | Filter and sump need cleaning |
| Residue only on the lower rack | Spray arm may be blocked or tilted |
| White film on glasses | Hard water or too much detergent |
| Clean dishes but E16 anyway | The code may be unrelated to the wash result |
Deep filter clean
Twist out the cylindrical filter, separate the mesh, and scrub it under warm water with a soft brush. Wipe the recess under it with a cloth, taking out anything you can see without reaching into the pump area. Rinse the spray arm holes while you are there. Run a hot cycle on an empty rack to clear what remains.
Prevent a repeat
Scrape plates, but skip long pre-rinsing, because modern detergents work better with a little soil to grab. Keep large bones, olive pits and corn husks out of the tub, since those are the usual cause of a jam. A jam here means something hard lodged where water has to pass, not a software fault.
If the code returns
When E16 appears again after a fresh filter and an empty hot cycle, the circulation side deserves a proper test. That means the pump and the sensing that confirms pressure, checked by a technician with the machine open. Bring the answer to which rack was dirty, and your estimate will come in writing after diagnosis.
Nothing is replaced until you give the go-ahead.
Useful details for the visit
If you can, keep the filter debris in a small bowl until the technician arrives. What it contains, whether seeds, label paper, shell fragments or just soft food, tells a lot about where the wash water has been struggling. A filter that is clean while the dishes are still gritty moves attention toward the spray arms or the circulation pump rather than the filter.
Also mention what you use for detergent. Powder, tablets and gel behave differently in hard and soft water, and the right choice changes how much residue ends up on the dishes.
Frequently asked questions
Food particles are redeposited when the filter is blocked or spray is weak. A clean filter normally fixes it.
No. A dirty filter is a likely owner-fixable cause, but the code is model-dependent and can have other sources.
Weekly for heavy use, monthly for light use, and always after a big gathering.
Model compatibility: Bertazzoni reuses codes across series and model years, so E16 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
