Troubleshooting
8
What it means
Error 4
The meter has detected a
problem with the test strip.
Strip problem.
Possible cause is test strip
Retest with a
damage.
new strip.
What to do
Repeat the test with a new
test strip; see page 32
or page 61. If the error
message appears again, contact Customer Care. Contact
OneTouch
Customer Care on 0800 121 200 (UK) or
®
1800 535 676 (Ireland).
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