F37 Error on Teka Ceramic Hobs

What the F37 error indicates on a Teka ceramic hob

The F37 error on a Teka ceramic hob is usually related to an abnormal thermal reading (temperature sensor/NTC or its circuit) or to a protection condition when the electronics cannot trust the temperature signal. Put simply: the hob detects a value that is out of range, unstable, or inconsistent and blocks operation to prevent damage to the electronics or incorrect power control.

This code may appear with patterns such as:

• The hob turns on, you try to activate a zone, and F37 appears.
• It works for a few minutes and then locks, especially after heating up.
• The error repeats on the same zone or on the same side of the hob.

The most common causes usually include:

• Degraded thermal sensor (NTC) or altered readings.
• Loose connector or wiring with poor contact near the module.
• Heat build-up under the hob due to insufficient ventilation, which destabilizes readings.
• Less commonly, an internal measurement fault in the power module or the control electronics.

In short, F37 typically indicates that the hob cannot manage temperature reliably, so it protects itself by blocking one zone or overall operation.

Steps to clear F37 and prevent it from coming back

A ceramic hob operates on mains voltage. Do not handle terminals or open the hob unless you are a technician. This process helps you rule out the most common causes and narrow down the source of the fault.

1. Switch it off and let it cool down properly
   • Switch off all zones.
   • Wait 15–20 minutes for the temperature to drop and the electronics to stabilize.
   • If the cabinet was very hot, extend the cool-down time.

   If F37 was triggered by heat build-up or an unstable reading due to temperature, this step is the first filter.

2. Perform a full electrical reset
   • Switch off the circuit breaker for 3–5 minutes.
   • Restore power and test one zone at medium power.

   This reset often clears lock-outs after micro cuts or one-off glitches.

3. Check whether the fault is associated with a specific zone
   • Activate each zone separately, without using multiple zones at the same time.
   • If F37 always appears with the same zone, the issue is usually localized to that zone (sensor/wiring/module).
   • If it appears with any zone or immediately on power-up, it points to a general reading/control issue.
4. Check the cabinet ventilation and avoid overheating
   • Remove items from the drawer below if they are pressed against the underside of the hob.
   • Make sure the cut-out is not “sealed” with no air intake/outlet.
   • If there is an oven underneath, test with the oven switched off.

   Lack of ventilation is a common cause of unstable thermal readings and protective lock-outs.

5. Observe whether F37 appears when cold or after several minutes
   • When cold and at start-up: often indicates sensor/wiring/connector or control electronics.
   • After heating up: more often related to accumulated heat and insufficient dissipation.
6. Do not force repeated power cycles
   • If F37 appears, avoid switching on/off trying to “make it work”.
   • Do one test after each reset and let it rest if it returns.
7. When it makes sense to move to technical diagnosis
   • F37 persists after cooling down, cleaning, and an electrical reset.
   • The error is constant on the same zone or side.
   • It appears when cold, right after switching on, without prior cooking.

   At that point, it is common to check the NTC sensor, wiring continuity and connectors, and assess whether the cause is in the power module or the control.

When F37 appears occasionally, it is often resolved by cooling down and performing a full electrical reset. If it becomes recurring, the safest approach is to treat it as a thermal reading issue: first ventilation and usage conditions, then sensor and connection checks to prevent the fault from worsening.