F1
Grundig Oven Temperature Sensor Short Circuit / Overtemperature

Grundig electric oven displays F1 and beeps; oven may not heat or may shut off unexpectedly.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Shorted temperature sensor, Sensor wiring shorted to chassis, Sensor wires pinched at rear panel, Faulty control board interpreting overtemperature

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing rear panels or wiring. Hot surfaces can cause burns.

  • Allow cooling: Let the oven cool completely and then try to restart a simple bake cycle.
  • Inspect sensor wiring: From the rear, check that the sensor wires are not crushed or touching sharp metal edges.
  • Test sensor: If equipped, use a multimeter to measure sensor resistance at room temperature. A very low resistance (near 0 Ω) indicates a short; replace the sensor.

If a new sensor does not clear F1, the electronic control board may be defective and should be replaced by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Oven Temperature Sensor (Probe)
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