What HI Means
Bertazzoni's own use & care manual lists HI as a high voltage failure — the dishwasher's electronics have detected incoming power outside the range the appliance is designed to safely operate within.
Common Causes of HI
- Incorrect wiring or breaker sizing at the home's electrical supply
- A loose electrical connection at the junction box or outlet
- A genuine home voltage irregularity, such as after a storm or utility fluctuation
🔧 One Safe Check You Can Try
There's no safe DIY check here — this points to a home electrical supply issue that needs a licensed electrician, not a dishwasher repair alone; Bertazzoni's own manual routes it straight to "Contact service."
⚠ Why You Shouldn't Go Further Than That
- This points to a home electrical supply issue, not the dishwasher itself — opening the appliance won't fix it and adds unnecessary risk.
- High-current circuits can cause serious injury if worked on without a licensed electrician isolating the supply first.
- Continuing to use the dishwasher while supply voltage is out of range can cause further internal damage, turning a wiring fix into an appliance replacement.
- Treating this as something wrong inside the dishwasher and opening it up risks forfeiting the warranty while the real electrical problem goes unresolved.
- Correcting home wiring is licensed electrician work in most jurisdictions, not a dishwasher repair at all.