Viking Designer Cooktop Code FJ: Key Error on the Touch Control

What FJ means

On Viking Designer DETU series touch-control radiant cooktops, FJ is another key error. All heating elements are shut off, and the timer display holds the code. A touch key may be stuck or reporting wrongly. FJ shares the key error meaning with FA, FC and FU, but the letter points us to a specific key circuit, so tell us exactly what you see.

Common causes of FJ

Touch key reading as pressed
Moisture or residue on the touch panel
Key line to the control reading wrongly

✓ One safe check you can try

1. Turn the cooktop off and let the glass cool. 2. Dry the touch area and remove anything resting on it. 3. Flip the breaker off for a short minute and on again. 4. Try the on key. 5. If FJ returns, call us.

! Why to stop there

The key circuits are under the glass
Only testing shows which key is reporting wrongly
Repeated resets do not fix a worn key

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.

→Same appliance

Other Cooktop codes

7Viking Induction Cooktop Code 7: voltage supply missing a leg FOViking Designer Cooktop Code FO: Software Error in the Control 8Viking Induction Cooktop Code 8: unassignable error received FrViking Designer Cooktop Code Fr: A Relay Error Stops All Heat 8 flashes (with brief interval)Viking VCCU Cooktop Code 8 flashes (with brief interval): Inside Ambient Is Too High FtViking Designer Cooktop Code Ft: Sensor Failure With a Small t 9Viking Induction Cooktop Code 9: coil temperature sensor defective FUViking Designer Cooktop Code FU: Another Key Error Stops the Elements

FJFJ questions

Why so many key error codes?

Each letter points to a different key circuit. That helps us find which part of the touch panel is reporting wrongly. The letter after F tells us which key circuit reported the problem.

Could a spill have caused FJ?

Yes. Liquid or grease on the panel can make a key read as pressed. Dry the panel carefully and try again after a power reset.

How quickly can you come?

Tell us the code when you call. We schedule quickly, quote the price in writing and back the repair with a 30-day workmanship warranty. Our technicians usually find which key circuit is at issue within a single visit.