ATH-Heinl ATH-W Serie Manuel D'instructions page 111

4.5 Troubleshooting / Error Display and Solutions
The balancing computer may display the following error messages:
Error Code Reason
Err -1- See troubleshooting
1. There is no wheel on the shaft, or wheel is too light
2. Balancing shaft is not tightened
Err -2-
3. Wheel was not sufficiently secured
4. Ribbed belt not or too weakly tensioned
Err -3- Wheel imbalance is too great
Defective pressure sensor
Err -4-
Rotates in wrong direction
Err -5- Wheel cover is not closed
Err -7- Saved data has been deleted
100g weight missing
Err -8- Defective pressure sensor
Defective power board or motherboard
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