ER18
Rösle
Combustion Fan Speed Monitoring Error
Display shows ER18; grill reports a fan speed error or airflow fault.
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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
Fan tachometer wire disconnected (if equipped), Fan blades obstructed, Failing fan motor, Control board fan speed sensing fault
How to Fix / Troubleshooting
Safety first: Unplug the grill and allow it to cool before accessing the fan.
- Inspect fan area: Remove the side or rear panel to access the combustion fan. Check for grease, foil, or debris blocking the blades.
- Check tachometer wiring: If your Rösle fan has a third (tach) wire, ensure it is connected securely to the control board.
- Spin test: Rotate the fan by hand to confirm it moves freely. Any grinding or stiffness indicates a failing motor.
- Replace fan if needed: Install a new Rösle-compatible combustion fan assembly if the existing one is noisy, slow, or seized.
- Test operation: Reassemble, plug in, and start the grill. Confirm that ER18 does not reappear and that airflow is strong.
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Repair Difficulty
Medium
3/5
Required Part
Combustion Fan Assembly
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