Bosch Range Hood FAN-FAIL Error: Fan Motor Failure
Bosch Range Hood: Fan Motor Failure When a Bosch range hood turns on but produces no air movement, the fan motor has likely failed. The motor may hum without spinning, or may be completely silent. Common Causes Motor bearings seize from accumulated grease and dust. The motor windings can also burn out from age. A […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Without a working fan, the hood provides no ventilation. Cooking without ventilation allows grease and moisture to accumulate.
Can I reset the code?
No. A mechanical motor failure requires physical repair.
When to stop immediately?
Stop if you notice: No airflow on any speed, Motor smells hot.
Symptoms You May Notice
No air movement from hood
The hood appears to turn on but no suction is felt when placing your hand near the filter area.
Motor hums but fan doesn't spin
An electrical humming sound without any airflow indicates the motor is trying but failing to rotate.
Possible Causes
Burned-out fan motor
The fan motor windings have failed from age or overheating.
Requires ProfessionalSeized motor bearings
Grease and dust buildup has seized the motor shaft bearings.
Requires ProfessionalFailed capacitor
The motor start/run capacitor has failed.
Requires ProfessionalSafe Checks You Can Do
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1
Test all speeds
Try each fan speed setting. Sometimes the motor works on high but not low, or vice versa.
If the fan works on one speed only, the switch or speed controller may be the issue, not the motor.
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2
Clean the filters
Remove and clean the grease filters. Heavy grease buildup increases motor strain.
Soak aluminum filters in hot soapy water for 15 minutes, then scrub.
When to Call a Professional
Contact a qualified technician if:
- Motor hums but won't spin
- No electrical continuity in motor
- Capacitor is swollen or leaking
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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