Bertazzoni Cooktop Code FJ: Security Key Error in the ADC

What FJ means

On the legacy Bertazzoni induction cooktop P365IME and the radiant PE244CER and PE304CER, FJ is another key error in the F-letter group. On the PE..CER it is a security key error in the ADC, the part of the control that reads the key signals. All heaters are switched off and locked, so the display shows FJ and the zones will not heat.

Common causes of FJ

Dirt, moisture or an object overlapping the control keys
A temporary reading error that clears after a power reset
An ADC reading problem in the control that needs a technician

✓ One safe check you can try

1. Clear everything away from the control keys and dry the glass. 2. Switch the cooktop off at the breaker for about a minute. 3. Restore the power and see whether FJ is gone. 4. If FJ appears again, keep the cooktop off and call us.

! Why to stop there

FJ locks the heaters, so there is nothing to cook with until it is resolved.
The ADC is part of the board under the glass, with live voltage nearby.
We write the price down first, and finished work comes with 30 days of workmanship warranty.

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

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 Sudden Shutdown With Signal ToneBertazzoni Induction Cooktop Sudden Shutdown With a Signal Tone and Error Code FEBertazzoni Radiant Ceramic Cooktop Code FE: Touch NTC short FHBertazzoni Radiant Ceramic Cooktop Code FH: EEPROM checksum error FLBertazzoni Cooktop Code FL: Keyboard Error from Ambient Light

FJFJ questions

What is the ADC in FJ?

It is the part of the control that converts the key signals so the cooktop can read them. FJ means that reading went wrong, so the security system locks the heaters as a precaution.

Should I worry about leaving the cooktop plugged in?

It is hardwired, so simply leave it switched off at the breaker if FJ keeps returning. Nothing is heating while the code is active, but a technician should inspect it.

Will cleaning the glass fix FJ?

Sometimes. Residue or moisture over the keys can cause key errors, so cleaning is the right first step. If FJ stays after a clean, dry glass and a power restart, the control needs testing.