VERIFIED
The sound at drain time
A healthy drain is a short, steady whirr that ends with a gurgle. Some owners hear something else when E36 is on the screen: a loud hum that goes on and on, a rattle like marbles, a grinding scrape, or a pump that starts, stops, and starts again. Describing which one you hear is the most valuable thing you can do. The drain pump moves water out of the tub through the drain path, so what it sounds like while it works says more than the code number alone.
About the code
E36 does not have one confirmed meaning for every Bertazzoni dishwasher, so no specific part is named here. The noise and the water level are your evidence, and they decide where the technician starts. A code that appears once and does not return on the next cycle may reflect a one-off interruption, while one that returns every time the dishwasher tries to drain points to something persistent.
Match the sound to the story
| What you hear | Worth telling the technician |
|---|---|
| Steady hum, little water moving | How much water stayed in the tub |
| Rattle or tinkle | Whether a glass broke or something fell into the sump |
| Grinding scrape | Whether the noise started suddenly |
| Start and stop repeatedly | How many times it repeated |
Outside steps worth taking
Switch off the dishwasher and look into the tub. Lift out the filter and look at the recess. If you see a visible shard, a cap or a seed within easy reach, you can pick it up with your fingers once the power is off at the breaker. Wear a glove if glass is likely.
Do not push anything down into the sump, and do not run the machine again to see if the noise returns while the tub is full.
Why it is a visit
A pump that hums without moving water can overheat if it is left running, and a grinding pump may be damaged already. Checking it means testing the pump, its wiring and the signal to the control with the machine opened. The hazard of live parts near water makes that work for a technician.
A written estimate follows the diagnosis, and no part is replaced until you approve it.
While you wait
Bail out the standing water, leave the door open to dry the tub, and wash by hand. A short phone recording of the sound is an excellent piece of evidence.
Information that speeds things up
Tell the technician how loud the sound is, how long it lasts, and how much water remains. If a glass broke recently, say when. Keep any pieces you removed, since a technician can often tell from their shape whether they could have reached the pump.
Frequently asked questions
A pump that runs without moving water can overheat, so switch the machine off instead of letting it continue.
Not necessarily. A shard in the sump is a common cause of noise and is removed during diagnosis.
The pump sits below the filter and is not for homeowners to open.
Model compatibility: Bertazzoni reuses codes across series and model years, so E36 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
