Accu-Chek Aviva Combo Owner's Booklet page 84

Troubleshooting Checks
6. Did you follow the directions?
7. Did you choose the correct control solution level,
either 1 or 2, when you performed the control test?
8. Are you still unsure of the problem?
78
Actions
Read Chapter 3, Control Testing, and repeat the
control test. If you still have problems, contact
ACCU-CHEK Customer Care Service Center at
1-800-688-4578.
If you chose the wrong control solution level, you
can still compare the control result to the range
printed on the test strip container.
Contact ACCU-CHEK Customer Care Service Center
at 1-800-688-4578.