f34
Moderate
Bosch · Ovens & Ranges
Warming drawer sensor open circuit
Quick Answer
Error code F34 on your Bosch Ovens & Ranges means: Warming drawer sensor open circuit. This is usually fixable — see the step-by-step guide below.
Likely Causes
How to Fix It
1
Turn off the oven at the circuit breaker.
2
Ensure the sensor connector is fully inserted into the control board jack.
3
Check for any loose or burnt wires at sensor connections.
4
Check warming drawer sensor wiring for damage - look for broken or cut wires causing an open break.
5
Test the sensor with a multimeter for proper resistance.
6
Replace the sensor or wiring as needed.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Warming drawer temperature sensor
Multimeter
Wiring harness (if damaged)
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