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What HI is telling you
The two letters HI appear in the fault table of Bertazzoni’s dishwasher manuals next to the words “high voltage failure.” The instruction beside it is a single line: contact service. There is no reset routine, no part to clean, and no list of causes.
What that leaves for the owner
With no owner step published, the sensible approach is a cautious one. Do not keep starting cycles to see whether the code goes away. A voltage fault is about the electrical supply to the machine, and repeated restarts on a suspect supply gain you nothing.
- Stop the cycle and note exactly what the display shows.
- Unplug the dishwasher, or switch off its breaker if it is hard-wired, before anyone looks behind the kick panel.
- Leave the plug and the junction box alone. Mains wiring belongs to an electrician or a technician.
We will not guess at whether the problem sits in the house wiring, the power cord or the control inside the machine, because Bertazzoni does not say. A technician can test which of those applies.
Details worth noting for the call
Technicians work faster with a few plain observations: whether HI appeared the moment the machine was switched on or partway through a wash, whether other appliances or lights on the same circuit have been behaving oddly, and whether the dishwasher was moved or reinstalled recently. None of this replaces a diagnosis, and none of it is something the manual asks you to measure.
Not to be mixed up with
HI is easy to confuse with other letters in the same table, but the meanings are unrelated.
Booking a Bertazzoni dishwasher repair in San Francisco
Call (415) 692-0756 and say the display reads HI. The model and serial number are on the label on the right-hand side of the inner door, so open the door and read them out.
Model compatibility: Bertazzoni reuses codes across series and model years, so HI may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
