What Only One Side Works Means
On the earlier P365IX generation Bertazzoni gives this sign a blunt entry of its own: if only half the cooktop comes to life at switch-on, the manual calls it an internal problem with the unit and sends it to a service agent without listing a homeowner check.
Common Causes of Only One Side Works
- One of the two power boards having failed
- A supply leg lost at the connection block, leaving half the appliance dead
- A damaged or disconnected harness between the boards
🔧 One Safe Check You Can Try
Confirm it really is a whole side rather than one zone by trying a known-good magnetic pan on each ring in turn, and note which zones are dead. On these cooktops each half runs from its own power board, so a clean split down the middle is a useful thing for a technician to be told.
⚠ Why You Shouldn't Go Further Than That
- Isolate the cooktop at its breaker before the connection block is inspected, because a lost supply leg means live conductors sitting in a terminal that looks dead from above.
- Half a cooktop failing looks like a board problem and is sometimes only a supply connection, so buying a board before the wiring is checked is a common and expensive misstep.
- A hob wired on a shared or undersized circuit can behave this way under load, which makes it an electrician question as much as an appliance one.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.