What do the error messages mean on my glucose meter?

Below are the following error types for the iHealth glucose meter, what they mean, and what you should do. 

Message: Lo

What this means: Your blood glucose level is lower than 20mg/dL (1.1mmol/L)

What you should do: Repeat the test using a new test strip. If your result still flashes "Lo", then seek medical advice immediately.

Message: Hi

What this means: Your blood glucose level is higher than 600 mg/dL (33.3mmol/L)

What you should do: Wash and dry you rhands, and the test site, thoroughly. Repeat the test using a new test strip. If your device still flashes "HI" seek medical advice immediately. 

Message: Er0

What this means:The battery in your meter is low

What you should do: Charge the device.

Message: Er2

What this means: Problem with the meter.

What you should do: Re-test with a new test strip. If the problem persists, call iHealth Labs Customer Service at 1-855-816-7705

Message: Er4

What this means: Problems have occurred that are related to test strip use.

  • The test strip may be wet.
  • The Test strip may have been removed too soon.
  • You applied more blood after testing began.

What you should do: re-test using a new test strip.

Message: Er5

What this means: The environmental temperature is lower than 50 degrees F (10 degrees C).

What you should do: Go to a warmer environment and try the test again.

Message: Er6

What this means: The environmental temperature is higher than 104.

What you should do: Go to a cooler environment and try the test again.

Message: Er8

What this means: Communication error.

What you should do: Touch START to re-test.

Message: Er9

What this means: strip removed during measurement.

What you should do: start using a new test strip.

Message: ErC

What this means: Your meter is not synced to the app on your iOS device yet.

What you should do: Work through the steps to set up your glucometer.

Message: Erd

What this means: there are no new test strips in the vial.

What you should do: Scan a new vial of test strips.

Message: ErE

What this means: the test strip has expired. 

What you should do: use a new test strip.

Message: ErF

What this means: you cannot charge the device and take a measurement.

What you should do: unplug the charger and try taking your reading again.

Message: Blank (No message)

  • The battery may be too low. Try charging your device. 
  • Too much time may have passed between inserting a test strip and performing the test.
  • Test strip has not been fully inserted into the meter.

Still having trouble? 

If you still need additional help, don't hesitate to reach out to us at Noteworth at help@noteworth.com. You can also select " Contact Noteworth Support" in the settings page on your app to email Noteworth directly from your smartphone.

If you run into trouble, you can always call our support line: 888-983-1673

We are available for live support from 9:00 AM to 6:00 PM ET.

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