IQOS 3 DUO Troubleshooting Guide: Solving Common Issues

The IQOS 3 DUO is a smoke-free, heat-not-burn tobacco device that has gained immense popularity in recent years. While it’s designed for ease of use and convenience, some users might encounter issues with their devices from time to time. In this comprehensive troubleshooting guide, we will address the most common issues faced by IQOS 3 DUO users and provide step-by-step solutions to help you get your device working optimally once again.

IQOS 3 DUO Troubleshooting:

1. Device not turning on:

If your IQOS 3 DUO isn’t turning on, there could be several reasons behind it:

  • Ensure that the device is charged. Plug in the charger and wait for at least 20 minutes before attempting to turn it on again.
  • Check if the device is locked. Press and hold the button on the IQOS holder for four seconds to unlock it. If it’s locked, the LED light will blink white.
  • If the device still doesn’t turn on, perform a reset by pressing and holding the button on the charger for 10 seconds until the lights flash white.

2. Charging issues:

If your IQOS 3 DUO isn’t charging properly, try the following:

  • Ensure that the charging cable and power source are working correctly. You can do this by testing the charger with another compatible device.
  • Check the charging port for any debris or damage. Gently clean it with a dry, soft brush or a cotton swab.
  • Make sure the IQOS holder is properly seated in the charger. The LED light on the holder should turn on when it’s charging.

3. Heating issues:

In case your IQOS 3 DUO is not heating up, consider the following steps:

  • Ensure that the HEETS stick is inserted correctly. The tobacco portion should be facing down, and the filter should be facing up.
  • Check if the heating blade is damaged or dirty. Clean it gently with the IQOS cleaning tool, ensuring not to apply too much pressure.
  • If the heating issue persists, try resetting the device as described earlier.

4. Poor or inconsistent taste:

To resolve taste issues with your IQOS 3 DUO, follow these guidelines:

  • Ensure that you’re using authentic HEETS sticks. Counterfeit or expired sticks may produce an unpleasant taste.
  • Check the device for cleanliness. Regularly clean the heating blade, cap, and holder to maintain optimal taste.
  • Allow the device to preheat properly before taking a draw. Rushing the process may lead to an unsatisfactory experience.

5. Blinking red light:

If the IQOS 3 DUO displays a blinking red light, it indicates an error. To resolve this:

  • Check if the device is too hot. Allow it to cool down before using it again.
  • Examine the holder and charger for damage or debris, and clean them if necessary.
  • Reset the device by following the instructions mentioned earlier.

Explore: Understanding the IQOS 3 DUO: Key Differences and Advancements


The IQOS 3 DUO is a reliable and enjoyable alternative to traditional cigarettes. By following this troubleshooting guide, you can quickly resolve any issues and enjoy a seamless smoking experience. However, if the problems persist even after attempting these solutions, we recommend reaching out to IQOS customer support or visiting an authorized IQOS store for further assistance.

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