What PRE-HEATING Light Flashing With Alarm Means
On Bertazzoni ranges, the oven side shares the same control architecture as the brand's wall ovens, and Bertazzoni's own troubleshooting guide lists a flashing PRE-HEATING indicator with a sound alarm as the problem alarm for the oven cavity's cooling fan.
Common Causes of PRE-HEATING Light Flashing With Alarm
- A worn or seized cooling fan motor
- A wiring problem between the fan and the control board
- A control board no longer driving the fan correctly
🔧 One Safe Check You Can Try
Bertazzoni's own guide has you turn both control selectors fully to OFF first — if the alarm returns the next time you try to use the oven, that confirms a genuine fan problem rather than a one-time glitch.
⚠ Why You Shouldn't Go Further Than That
- The cooling fan sits close to the oven's control electronics on the range, and testing or replacing it without fully de-energizing the unit is a shock risk.
- Continuing to run the oven side with a failed cooling fan can let the electronics run hotter than rated, risking a second, more expensive failure.
- This can be mistaken for the separate temperature-sensor problem alarm, and chasing the wrong one wastes a service visit.
- Reaching the fan typically means accessing the rear of the range, one of the more common ways owners accidentally affect their remaining warranty coverage — check your terms first.
- A fan reinstalled even slightly unbalanced can wear out again quickly, so this is worth a technician's proper fit rather than a rushed swap.
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.