Bertazzoni Cooktop Code FU: Security Key Error in the Divisor

What FU means

On the legacy Bertazzoni induction cooktop P365IME and the radiant PE244CER and PE304CER, FU is a security key error in the divisor, one of the circuits that the control uses to read the keys. The heaters are off and locked, the display shows FU, and the zones stay cold, and the cooktop belongs to the same F-letter family as FA, FC, FJ, FL and Fb.

Common causes of FU

Dirt, a spill or an object overlapping the control keys
A temporary key reading error cleared by a power reset
A divisor circuit in the control that needs a technician

✓ One safe check you can try

1. Lift off anything that is covering the controls. 2. Clean and dry the glass around the keys. 3. Switch the cooktop off at the breaker for about a minute, then back on. 4. Should FU come back, leave the cooktop off and book a visit with us.

! Why to stop there

With the heaters locked, FU leaves you with no usable cooktop.
The divisor circuit sits on the board under the glass, near live voltage.
We quote in writing before we start, and we stand behind the repair for 30 days.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Cooktop codes

Sudden Shutdown With Signal ToneBertazzoni Induction Cooktop Sudden Shutdown With a Signal Tone and Error Code Touch Controls UnresponsiveBertazzoni Induction Cooktop Touch Controls Unresponsive: Locked or Wet Keys UBertazzoni P304IAE Induction Cooktop Code U: No pan or inadequate pan u (pan symbol)Bertazzoni Professional Induction Cooktop Code u: No suitable cookware U400Bertazzoni Induction Cooktop Code U400: Supply connection No pan symbolBertazzoni Induction Cooktop Message "No Pan Symbol": Pan removed from zone FABertazzoni Cooktop Code FA: Security Key Error in the On/Off Key Emitter Only One Side WorksBertazzoni P304IX Cooktop Heats on Only One Side: Internal Problem

FUFU questions

Which letters belong to this family?

FA, FC, FJ, FL, FU and Fb are all key or keyboard errors. On the PE..CER each letter names a different part of the key circuit, and FU is the divisor.

Is there anything I can do besides clean and restart?

Not safely. The official first steps are to keep objects, dirt and liquid off the commands and to remove and restore the power. Anything beyond that means opening the cooktop.

Will the cooktop work again after FU?

Frequently yes, once the cause is cleared. If FU keeps coming back, the circuit that reads the keys needs repair, and we would test it and quote the cost first.