ER39 Error on Teka Ceramic Hobs

What the ER39 error indicates on a Teka ceramic hob

The ER39 error on a Teka ceramic hob usually indicates a fault in the control module’s internal programming options (factory-level parameters inside the electronic control, sometimes described as fuses/lock bits). Put simply: the hob detects that the “low-level” configuration it needs to start up is not valid or does not match what is expected and, as a safety measure, it locks to prevent unpredictable operation.

That is why ER39 typically appears with a very clear pattern:

• It appears as soon as the hob receives power or when you try to switch it on.
• The ceramic hob won’t operate or it stops before it even begins heating.
• In some cases, it shows up after a power cut/micro cut, a sudden reconnection, or a brief electrical disturbance.

Important: this code is not usually related to cookware, a specific zone, or a user setting; it points to the control module and its internal programming.

How to clear ER39 and what to check before requesting service

With ER39, it’s best to be direct: start with a full power reset (to rule out a one-off lockout) and, if the error persists, focus on checking the electrical context and installation. If the warning returns immediately, it typically requires technical diagnosis of the module.

1. Perform a “real reset” from the electrical panel
   • Switch off the hob circuit breaker.
   • Wait 10 minutes (full discharge of the electronics).
   • Restore power and try switching it on calmly.

   This step helps rule out ER39 being triggered by a temporary state after an electrical event.

2. Note whether ER39 returns instantly or after interacting
   • Returns as soon as power is restored: usually indicates a persistent control fault (invalid internal configuration).
   • Appears after touching the controls: less common with ER39, but still useful to describe if you end up calling service.
3. Rule out moisture and residue around the control area
   • Dry the glass thoroughly, especially the touch area and edges.
   • If you have just cleaned it, let it sit and dry (avoid residual moisture).
   • Avoid direct steam hitting the controls while testing.
4. Check the electrical context (very relevant when the error appears after outages)
   • Test the hob without other high-load appliances running at the same time (oven, water heater, washing machine).
   • If there is light flicker, breaker trips, or other odd electrical symptoms, a professional should check terminal tightness, the neutral, and voltage stability.
   • If the hob is new or was recently installed, have a technician/electrician confirm that the supply and wiring match the requirements for that model.
5. When it makes sense to call a technician
   • ER39 persists after the 10-minute full reset.
   • The error always appears at start-up and the hob won’t allow use.
   • It repeats after electrical cuts or returns recurrently.

   When ER39 is stable, the usual outcome is to diagnose the control module and, depending on the case, resolve it via reprogramming (if applicable) or control replacement to restore a valid configuration.

If ER39 was a one-off episode after a power cut, it can sometimes be cleared with the reset at the panel. If it returns immediately or becomes recurrent, the most efficient solution is usually to check the installation and focus the repair on the control module, because the hob is detecting an issue in its internal programming.