ForaCare FORA D40 Owner's Manual page 57

What happened?
The control solution test result is out of range.
POSSIBLE CAUSE
Error in performing the test.
Control solution vial shaken poorly.
Expired or contaminated control
solution.
Control solution that is too warm or
too cold.
Test strip deterioration.
Monitor malfunction.
57
WHAT TO DO
Read the instructions thoroughly and
repeat the test.
Shake the control solution vigorously
and repeat the test.
Check the expiration and discard
dates of the control solution.
It is recommended to use the control
solution between temperatures of
20℃ and 25℃ (68℉ and 77 ).
Repeat the test with a new test strip.
Please contact your local customer
service.
A1-57
℉