Comprehensive Analysis: Reasons for Dexcom G6 Sensor Failure

Dexcom G6 Sensor Failure

Table of Content

        • Introduction
        • Dexcom G6 Sensor anatomy and purpose
        • The causes of failure in sensors
        • The factors that cause sensor failure
        • Dexcom G6 sensor failure impact on diabetes management
        • Mitigating sensor failure
        • Dexcom sensor replacement request
        • Dexcom G7 is the best solution to sensor malfunction
        • Conclusion


Many people experience Dexcom G6 sensor failing issues, which can compromise the plan for managing diabetes of patients. Users must be aware of the reasons and what to do about it within the CGM devices. In this post, we’ll be discussing possible causes and ways to fix Dexcom sensor problems.

With the advancement of technology, medical devices, such as Continuous glucose monitors (CGMs), are getting more advanced. They are the Dexcom G6 sensor, a CGM device that measures sugar levels for diabetics, which allows them to continually check the levels of their blood sugar. However, the Dexcom G6 sensors will not be immune to malfunction like other medical devices.

In this piece, we’ll look at the root causes behind Dexcom G6 sensor failures, the contributing factors to the issue, as well as ways to minimize the impact caused by sensor failure.

Dexcom G6 Sensor anatomy and purpose

The Dexcom G6 is comprised of three components: sensors, a transmitter and the receiver. The sensor is a small cable that’s inserted into the skin to measure glucose levels within an interstitial liquid. The transmitter is connected to the sensor, and it sends glucose levels to the receiver, which will display the data. The Dexcom G6 Sensor is specifically designed to give precise and accurate glucose level readings for up to 10 days.

The causes of failure in sensors

Dexcom sensor failures can happen in various methods. The most common kinds of sensor failures include:

Signal loss:  Signal loss can be technically a Dexcom sensor problem that occurs when you notice that your Dexcom G6 transmitter is unable to transmit information signals to the receiver. It can occur due to a variety of reasons like interference by other electronic devices, obstructions between the receiver and transmitter or batteries in the transmitter that are weak.

Calibration error: Calibration involves putting an amount of blood glucose into the receiver for calibration of the sensor. The failure of calibration is when the sensor fails to be calibrated, which results in incorrect glucose values.

Sensor error: Sensor error refers to a mistake in the Dexcom G6 system when the sensor ceases to function correctly. The result is a reduction in the accuracy of glucose reads. This is a problem for those who rely on Dexcom G6 for their diabetes management. Dexcom G6 system to manage their diabetic condition.

The factors that cause sensor failure

Many factors could contribute to Dexcom sensor failure. Several factors can contribute to the demise of Dexcom. The most common causes comprise:

Sensor placement area: The sensor should be placed in a safe area, for example, the stomach or upper buttocks. Placing the sensor in an inconvenient location, like the leg or arm, could result in inaccurate results and even failure of the sensor.

Sensor handling: The wrong handling of the sensor at either removal or insertion could damage the sensor, resulting in the sensor failing.

Problems with transmitters: Transmitter issues, for example, a weak battery or a poor connection to the sensor, could cause sensor problems.

Environment: Factors that affect the environment, such as humidity levels, extreme temperatures and electromagnetic interference, could affect sensor performance and can lead to the failure of sensors.

Dexcom G6 sensor failure impact on diabetes management

Sensor malfunction has a major influence on managing diabetes on a self-basis. Achieving accurate glucose levels is crucial to manage diabetes effectively. Unreliable readings could cause incorrect dosing of insulin or the use of other drugs, which can result in hypoglycemia and hyperglycemia.

A sensor malfunction could go unnoticed, putting off medication because the device doesn’t notify you of the problem.

Furthermore, severe medical emergencies, like diabetic shock, may not be detected and can cause death for patients.

Mitigating sensor failure

To prevent Dexcom G6 sensor failures, you must comply with the steps below:

The correct insertion location: Ensure the sensor is placed in the right area, for example, the upper or lower buttocks or abdomen, in accordance with the recommendation of the manufacturer. Beware of inserting the sensor in inappropriate places, such as the leg or arm, because it could cause inaccurate readings as well as sensors failing.

Correct sensor handling: Handle the sensor carefully during its insertion and removal. Incorrect handling of the sensor could damage it and lead to malfunctioning of the sensor.

Troubleshoot transmitter issues: Regularly check the transmitter to make sure it is operating well and has an adequate battery and strong connection to the sensor. If your transmitter isn’t functioning correctly, it could cause sensor malfunction.

Take into consideration the surroundings: Environment-related factors, such as excessive humidity and temperatures, as well as electromagnetic interference, can impact the performance of sensors and cause malfunctioning sensors. To reduce the impact of these elements, be sure to avoid exposing your sensor to temperatures that are extreme and prevent contact with electromagnetic equipment.

Standard calibration: You should calibrate the device frequently as per the instructions of the manufacturer. It involves entering an amount of blood glucose into the receiver, which is used to make sure the sensor is calibrated. Periodic calibration will prevent the readings of glucose that are inaccurate as well as prevent sensor malfunction.

Re-install the sensor when required: If the sensor has stopped working, it could be necessary to replace it in order to get precise glucose levels and avoid further sensor failure.

Dexcom sensor replacement request

The Dexcom sensor replacement requested an application for a replacement sensor from the maker, Dexcom, where the existing sensor isn’t working correctly or is damaged.

This is usually the case when a user who uses the Dexcom G6 system encounters problems with the sensor or incorrect glucose levels despite attempting to fix the problem.

For requesting a Dexcom sensor repair, consumers are able to contact the company’s customer service team by telephone, email or chat online. The customer will be required to supply details about the Dexcom G6 sensor, which includes the serial number of the transmitter as well as the number for the new sensor’s lot.

It is also possible that they require information on what prompted replacing the item and what problems they’ve encountered.

After checking the information of the user and determining the need for replacement, Dexcom generally sends an additional sensor to the user along with instructions on how to insert it into the existing sensor and then activate it. The user may have to return their old sensor to Dexcom to conduct further research in order to determine the root cause of the malfunction.

Dexcom G7 is the best solution to sensor malfunction

If the Dexcom G6 sensor is giving problems frequently, the best solution for the issue is to use the latest version. Dexcom G7 is the most recent sensor that can be used to solve this issue.

There are many outstanding characteristics that increase its value in the eyes of diabetic patients. Furthermore, very few patients have reported errors in the sensor, as well as similar issues with Dexcom G7. This is why it’s the ideal replacement in place of Dexcom G6 if it is making you uncomfortable.

You can purchase this distinct CGM system on our site. We supply you with authentic devices for a low price. We also provide our customers with free shipping across the USA.


Dexcom G6 is among the most effective CGM instruments available to aid patients with diabetes in controlling their disease. But, it has a significant drawback, i.e. sensor failure. Customers always search for reasons and solutions for Dexcom G6 sensor problems.

The article explains the main reasons for this issue and suggests ways to solve this issue. The most effective thing you could accomplish in this situation is to upgrade your CGM and purchase Dexcom G7.

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Frequently Asked Questions

What are the main causes of Dexcom G6 sensor failure?

The main causes of Dexcom G6 sensor failure include signal loss, calibration errors, sensor errors, improper insertion site, mishandling of sensors, transmitter issues and environmental factors.

How does sensor failure impact diabetes management?

Sensor failure can have a major impact on diabetes management as it can lead to incorrect dosing of insulin or medications, resulting in hypoglycemia or hyperglycemia. It can also go unnoticed putting patients at risk of diabetic emergencies.

How can I prevent sensor failure?

You can prevent sensor failure by choosing the correct insertion site, handling the sensor carefully, troubleshooting transmitter issues, being mindful of environmental factors, calibrating regularly and replacing the sensor when needed.

What should I do if my sensor fails?

If your sensor fails, contact Dexcom customer support and request for a sensor replacement. You will need to provide details of the failed sensor and transmitter. Dexcom will assess and send a replacement sensor with instructions on how to insert and activate it.

Is Dexcom G7 a better solution than G6?

Yes, Dexcom G7 is considered a better solution than G6 as it has fewer reported errors and issues. It is more accurate and reliable with advanced features making diabetes management easier. Upgrading to G7 helps address frequent sensor failure problems with G6.

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