Understanding your Accu‑Chek Guide or Guide Me error codes isn’t just about fixing problems—it’s about staying in control of your diabetes management. When an unfamiliar code appears on the screen, it can feel stressful and even lead to incorrect assumptions about your blood sugar. By knowing what these codes mean and how to respond, you: Save time avoiding frustrations, ensure accurate readings, prevent device downtime, and improve your over safety.
✅ Accu‑Chek Guide Meter Error Codes:
Accu‑Chek Guide Meter Error Codes and Meanings
| Error Code | Meaning | How to Fix It |
|---|---|---|
| E‑1 | Strip not inserted correctly | Remove and reinsert the test strip properly; make sure it’s dry and undamaged. |
| E‑3 | Temperature out of range | Move the meter and strips to room temperature (59°F–104°F / 15°C–40°C) and retry. |
| E‑5 | Insufficient blood sample | Apply more blood to the strip or start a new test with a fresh strip. |
| E‑9 | Low battery or battery error | Replace both batteries and restart the meter. |
| LO | Blood glucose below measuring range | Confirm with a fresh strip and seek immediate medical attention if very low. |
| HI | Blood glucose above measuring range | Wash hands, retest with a new strip; contact a doctor if result is confirmed. |
| Err | Pairing issue with mobile device | Retry Bluetooth pairing or reset the connection in the Accu‑Chek Connect app. |
| Error Code / Message | Meaning | Suggested Action |
|---|---|---|
| Transfer not allowed | Data sync blocked (meter restricts transfer operation) | Check Bluetooth and app permissions, ensure proper pairing before retrying. |
| Transfer Failed | Sync attempt couldn’t complete | Retry transfer; restart the meter/app if it persists. |
| Test Not Allowed | Test strip not accepted by the meter | Remove and reinsert the strip, or use a new one. |
| Target % | Result excluded from percentage summaries | No user action; informational only. |
| Target % after meal 7 days | Post‑meal readings excluded from 7‑day averages | No user action; informational only. |
| Patterns – No active patterns | Not enough data to generate trend patterns | Continue logging readings regularly. |
| Pairing Failed | Bluetooth connection to mobile device failed | Retry pairing via the Accu‑Chek Connect app. |
| LO | Blood glucose is below the meter’s detectable limit | Retest with fresh strip; seek medical help if result persists. |
| HI | Blood glucose is above measurable range | Wash hands, use new strip, and retest; consult provider if high value confirmed. |
| No Connection / Connection Lost | Communication disrupted (e.g. Bluetooth or app issue) | Check app/meter connection, restart devices. |
| Invalid Date | Meter’s internal clock not set correctly | Set correct time and date in meter settings. |
| Flight Mode Active | Bluetooth disabled when airplane mode is on | Disable flight mode or enable Bluetooth to pair. |
| Sync Time | Time discrepancy caused syncing failure | Ensure mobile and meter clocks match; retry syncing. |
| E‑7 | Electronic/system hardware error | Remove batteries, press/hold power button 2s, reinsert batteries. |
✅ Accu‑Chek Guide Me Meter Error Codes:
Accu‑Chek Guide Meter Me Error Codes and Meanings
| Error Code / Message | Meaning | Suggested Action |
|---|---|---|
| USB | USB/data‑transfer error | Remove USB cable; retry data transfer or testing. |
| Memory | No data available in selected memory range | Change selection or review data in range. |
| LO | Blood glucose below measurable range | Retest with fresh strip; seek medical help if still very low. |
| HI | Blood glucose above the meter’s range | Wash hands, retest; consult healthcare provider if confirmed. |
| Err | Bluetooth pairing with mobile device failed | Retry pairing via Accu‑Chek app. |
| E‑1 | Test strip damaged, improperly inserted, or previously used | Remove/reinsert or use a new, undamaged strip. |
| E‑3 | Meter or test strip error occurred (may indicate extreme high BG in rare cases) | Repeat test; use new strip; if persists, perform control test or seek medical advice. |
| E‑4 | Insufficient blood/control sample applied | Discard strip and redo test with sufficient blood. |
| E‑6 | Sample applied too early (before flashing drop) | Wait for flashing drop symbol before applying blood, then repeat. |
| E‑7 | Electronic/system hardware error | Remove batteries, hold power button 2+ seconds, reinsert batteries and retry. |
| E‑8 | Operating temperature out of acceptable range | Move to room temperature (59–104 °F / 15–40 °C) and retest. |
| E‑9 | Batteries low or meter in cold environment | Replace batteries; if persists, hold power button 2 s then reinsert. |
| E‑10 | Time/date sync or internal clock error | Reset time/date or allow meter to sync via pairing. |
| E‑11 | Damaged or faulty test strip | Retest with a new strip; contact user support if issue continues. |
| E‑12 | Unusual interferent detected (e.g. high ascorbate in blood sample) | Consult healthcare professional. |
| E‑13 | Foreign material or fluid in strip port | Remove/reinsert strip; use new strip; contact support if persists. |
| E‑14 | Persistent electronic error; meter malfunction | Contact Accu‑Chek Customer Care. |
| Blank Display | Meter not powering on (dead battery, extreme cold, display failure) | Insert fresh batteries; move to temperate environment; contact support if blank persists. |
| Battery icon | Low battery warning | Replace batteries; optionally perform meter reset if needed. |