IntegrationsCode
What it means
What to do
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E-1
Test strip error — damaged, inserted incorrectly, or already used
Remove and reinsert the strip, or use a new one
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E-3
Meter or strip error. In rare cases, it may indicate glucose far above the measuring range
Repeat with a new strip. If you have symptoms of high glucose, seek medical guidance
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E-4
Not enough blood on the strip
Repeat the test with a new strip, applying enough blood
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E-6
Blood applied before the meter was ready (before the drop symbol flashed)
Repeat with a new strip and apply blood only when the drop flashes
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E-7
Electronic error
Turn the meter off and on. If it persists, contact Accu-Chek support
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E-8
Temperature outside the operating range
Move the meter and strips to a place with a suitable temperature, wait, and retry
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E-9
Battery almost out of power
Replace the meter's battery
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E-14
Electronic malfunction
Contact Accu-Chek support
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Err
General error (including pairing/connection)
Turn the meter off and on and try again
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LO
Glucose below the measuring range (very low)
Treat as advised by your doctor and, if needed, seek care immediately
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HI
Glucose above the measuring range (very high)
Repeat the test; if confirmed, seek medical guidance
{% /table %}
Accu-Chek meter error codes
Understand the Accu-Chek Guide Me error codes (E-1, E-3, E-9, Err, and others) and what to do in each case.
Accu-Chek meter error codes
The error codes below are shown by the Accu-Chek Guide Me meter itself, not by Diablesse. Diablesse only imports valid readings; when the meter shows an error, no reading is generated to sync.
The table below summarizes the main codes and what to do in each case.
{% table %}
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⚠️ Important: This is a summarized reference. For detailed, up-to-date instructions, see your meter's manual and the official [Accu-Chek error codes page](https://www.accu-chek.com/support/products/guide/error-codes). If you have questions about how the meter works, contact Accu-Chek support.
🩺 The LO and HI codes, or very high/low results, can indicate a risky situation. Always follow your doctor's guidance and, in emergencies, seek care.
Contact the developer — I reply personally.
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