Primer Shutdown Error.
Try the following:
1. Check that the Primer Stepper-Motor Cable is NOT broken or damaged and that the Primer Arm moves freely from side to side.
2. Replace the Service Station.
3. If the Error Code continues, replace the Main PCA.
Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.