VERIFIED
Bosch oven E118 is associated with cavity 1 cooling-fan supervision fault. Review symptoms, model details, and safe external checks before deciding on the next step.
When a Bosch oven displays E118, the control has registered cavity 1 cooling-fan supervision fault. That narrows attention toward the door, latch, or locking circuit, but the model/E-Nr and visible symptoms are still necessary before the warning is treated as a parts diagnosis.
Start with external observations and documented owner-level checks only. If the warning persists, move to model-specific diagnosis rather than repeated resets or speculative part replacement.
At a glance
- Code: E118
- Appliance: Bosch Oven
- Verified meaning: cavity 1 cooling-fan supervision fault
- Primary diagnostic direction: the door, latch, or locking circuit
- Service-area context: San Francisco; confirm coverage by ZIP code
What the warning means
The verified technical anchor for E118 is cavity 1 cooling-fan supervision fault. Preserve that meaning in the factual layer. The warning points the diagnostic path toward the door, latch, or locking circuit, while the exact model and symptom pattern determine how that information should be applied.
Symptoms worth recording
Before changing settings or cycling power, note the behavior you can see or hear:
- Air movement may be reduced.
- The appliance may run hotter or cool less effectively.
- A fan sound may change or disappear.
- The control may stop operation to protect other components.
Possible causes
The source record supports considering the following possibilities without treating any single one as confirmed:
- A fan physically blocked by debris or ice.
- A failed fan motor.
- Speed-feedback or sensor failure.
- Wiring or control failure in the fan circuit.
First steps that stay outside the appliance
- Verify only visible user-accessible airflow openings for blockage.
- Write down whether the fan sound changed before the code appeared.
- Avoid remove powered fan covers or reach into a moving fan area.
These checks are intended to gather useful information without exposing live wiring, bypassing an interlock, defeating a leak-protection device, opening a sealed system, or using undocumented service modes.
When to stop using the appliance
Leave the appliance off if fan loss is accompanied by overheating, burning odor, or visible electrical damage.
When diagnosis becomes the next step
If the visible airflow path is clear and the code returns, the fan motor, feedback, wiring, and control circuit require model-specific diagnosis. The useful service history includes when the code appears, whether it is repeatable, and what changed immediately before it.
For a service request, include what the appliance was doing immediately before the warning and which external checks were already completed.
Why the full Bosch model/E-Nr matters
The complete rating-label model matters. A code meaning documented on one Bosch oven platform should not be assumed to apply to every generation without verification.
FAQ
For this record, E118 is associated with cavity 1 cooling-fan supervision fault. The exact model/E-Nr still matters because Bosch can use different hardware and diagnostic logic across product families.
Only if no safety stop condition is present and the appliance is otherwise operating safely. If the code repeats, performance is abnormal, or there is leaking, smoke, electrical odor, sparking, overheating, or repeated breaker trips, leave the appliance off.
Use only a normal reset that Bosch documents for the exact model. If the warning returns, repeated resets are not a substitute for diagnosis.
No. The code identifies a detected system condition. Model information, symptoms, and model-specific testing are still needed before a component is selected.
Have the full Bosch model/E-Nr, the exact E118 display, the cycle stage or operating state where it appears, the visible symptoms, and the external checks already completed.
Bosch service in the San Francisco area
Still seeing E118 on your Bosch oven?
If E118 remains active or comes back, request Bosch oven diagnosis for the San Francisco service area. Include the complete model/E-Nr, exact code, symptom summary, and ZIP code so service coverage can be confirmed.
Model compatibility: Bosch reuses codes across series and model years, so E118 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.