Neff [Dashes]what it means

When every cooking-zone display shows a flashing dash and nothing else, the hob is not off and it is not in a lock. Neff’s instruction manuals list the display in the troubleshooting table as “the – indicator flashes in the hotplate displays”, give the cause as a fault having occurred in the electronics, and give a remedy that surprises most owners: to acknowledge the fault, cover the control panel with your hand. Covering the whole touch panel at once is the gesture the control board reads as an acknowledgement, and Neff’s table stops there.

What happens next is not written down, but the same manuals do say that when a fault is stored against a zone the hob shows a lone E in that zone’s display and you hold that zone’s control to read the code. So after acknowledging the dashes, look at the zone displays: if the hob has gone back to normal, carry on; if a code or an E appears, that is the thing to write down, because lines on their own tell an engineer nothing they can act on.

If the dashes come back as soon as you start cooking again, or reappear after the hob has been isolated at the wall for thirty seconds and reconnected, the electronics genuinely have a fault, and Neff’s remaining advice is to book their service and quote the code. Two innocent look-alikes are worth ruling out first, because both live in the same table. A control panel that is damp or has something resting on it makes the displays flash, and the fix is to dry it or move the object. And a hob that shows nothing at all has usually lost its supply, which is a check of the cooker switch and the consumer unit rather than of the hob.

1. 1

   Lay your open hand flat over the whole control panel for a second or two, so every sensor is covered at once. This is Neff’s published acknowledgement gesture.

2. 2

   Watch what the displays do next. If they clear, switch a zone on and check it heats. If a code shows, or a lone E in one zone, write down the code exactly, including any letters — for an E, hold that zone’s control to read it.

3. 3

   If the dashes stay, or return the moment you cook, isolate the hob at the cooker switch on the wall, wait thirty seconds and switch it back on. Neff publish this thirty-second reset for any code that is not in their table.

4. 4

   Check the glass is dry and clear around the controls before deciding the hob is faulty. Flashing displays with digits in them are a damp or covered panel, not an electronics fault.

5. 5

   If the dashes return after the reset, book a repair and give the code that appeared after acknowledgement. Nothing under the glass is a householder repair on a hard-wired hob.