Accu-Chek Mobile Error codes E-6 Too bright: retest in shade E-6 can mean a number of things, depending on the instructions on the display: Too bright: retest in shade - Move into the shade or shield the meter from sunlight. Repeat the test. E-9 Batteries drained: replace batteries Batteries drained: replace batteries. E-8 Temperature too high: retest in a cooler location E-8 can mean a number of things, depending on the instructions… E-8 Temperature too low: retest in a warmer location E-8 can mean a number of things, depending on the instructions… E-7 Meter failure: contact customer service Meter failure: contact customer service. E-6 Drop applied too early: retest E-6 can mean a number of things, depending on the instructions… E-5 Handling error Handling error. E-4 Cassette dirty E-4 can mean one of two things depending on the instructions… E-4 Blood applied incorrectly E-4 can mean one of two things depending on the instructions… E-3 Meter error - Retest A meter error has occurred or the meter is defective. E-2 Cassette? Insert new cassette There is no cassette in the meter. E-1 Cassette invalid: insert valid cassette E-1 can mean a number of things, depending on the instructions… E-1 Cassette expired: insert new cassette E-1 can mean a number of things, depending on the instructions… E-1 Cassette empty: insert new cassette E-1 can mean a number of things, depending on the instructions… E-1 Cassette defective: insert new cassette E-1 can mean a number of things, depending on the instructions… View all error messages Product Support Support videos Downloads & Guides FAQs