E18
Bosch
Air Circulation / Fan Motor Fault
Bosch dryer displays E18 and may not heat or may end cycles prematurely.
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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
Failed circulation fan motor, Obstructed fan blades, Loose fan wiring, Faulty fan relay on control board
How to Fix / Troubleshooting
Safety first: Disconnect power before opening the cabinet.
- Locate circulation fan: On many Bosch dryers, a fan circulates air through the drum and heat exchanger. Access it from the rear or side panel.
- Inspect for obstructions: Remove lint, debris, or foreign objects from the fan blades and housing.
- Test fan motor: Spin the fan by hand; it should move freely. Use a multimeter to check for proper resistance across the motor terminals. Replace the fan motor if open or seized.
If the fan motor is good but not receiving power, the control board or fan relay may be defective and require professional service.
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Repair Difficulty
Hard
4/5
Required Part
Circulation Fan Motor
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