What to Do When a Digital Scale Shows Error Codes
Err H / HHHHH
Meaning: load cell too high / Overload / Internal code overflow
Solutions:
Remove all weight from the scale and ensure no overload.
Check for foreign objects stuck under the weighing pan or sensor.
Turn off the scale and let it rest for 1 minute, then restart.
If the error persists: Recalibrate or repair (sensor/mainboard fault).
Err L / LLLLL / LO
Meaning: load cell too low / Low battery voltage / Sensor disconnection
Solutions:
Charge the battery or replace it; check the power adapter.
Inspect the sensor cable for looseness or damage.
Restart with no load. If still faulty: Sensor failure or recalibration needed.
Err N / NO
Meaning: Zero point out of range / Unable to zero automatically / No valid sensor signal
Solutions:
Make sure the scale is empty with no external force applied.
Press Zero to manually reset.
Adjust zero range in settings if available.
If ineffective: Recalibrate or check the sensor.
Err 4 / ErrE
Meaning: Internal memory (EEPROM) data lost or corrupted
Solutions:
Power off for 5 minutes and restart.
Restore factory settings and recalibrate.
If still error: Mainboard memory chip damaged, repair required.
-OL- / OFL / Over
Meaning: Overload / Weight exceeds maximum capacity
Solutions:
Remove overweight items immediately.
Check if capacity setting is too low.
Inspect for deformed sensor or short circuit.
If normal after restart: Continue use; otherwise, sensor/mainboard repair.
Err 10
Meaning: Memory full / Communication error / Counting error
Solutions:
Enter menu to clear records or accumulated data.
Restore factory settings if needed.
If unresolved: Send for repair.