Batteries drained: replace batteries - Insert new batteries.

E-8 can mean a number of things, depending on the instructions on the display: 

Temperature too high: retest in a cooler location - Move to a place where the ambient temperature is not higher than +40 °C and wait for the temperature of the meter to adjust to this temperature.

E-8 can mean a number of things, depending on the instructions on the display: 

Temperature too low: retest in a warmer location - Move to a place where the ambient temperature is at least +10 °C and wait for the temperature of the meter to adjust to this temperature.

Meter failure: contact customer service - If the error message is displayed after turning the meter on again, contact Accu-Chek Customer Care.

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-6 can mean a number of things, depending on the instructions on the display: 

Drop applied too early: retest - Do not apply blood or control solution to the test area until the apply drop prompt is displayed. Repeat the test.

Handling error: The user...

•  Has not washed their fingers or they are soiled or sticky
• Applied a contaminated blood drop (for example, due to food or drink residue on their finger).
• Pressed their finger on the test area
• Moved the tape of the test cassette
• Smeared the blood on the test area
• Was trembling or shaking
• Did not remove their finger from the test area as soon as they heard the beep tone.

The user should wash their hands with warm water and soap and rinse well. Hands should be thoroughly dried with a clean towel before obtaining blood.

Touch the test area gently and steadily with the blood drop or control solution. Apply the blood drop or control solution to the centre of the test area. Avoid trembling or shaky movements.

Remove the user's finger from the test area as soon as the beep tone sounds and 'Test in progress' is displayed. The beep tone helps the user to obtain a reliable test result.

E-4 can mean one of two things depending on the instructions on the display: 

Cassette dirty: Clean per user’s manual - Remove the dirt inside the tip of the cassette and, if necessary, carefully clean the measuring optics.