There may be several reasons for this issue:

1. Incorrect stick:
The device is designed to only work with SMARTCORE STICKS™. If you use any other product, the usage duration may be impacted or may not start.

2. Incorrect insertion of the stick & usage:
a. Ensure you insert your SMARTOCRE STICKS™ the right way.
b. Insert the SMARTCORE STICKS™ to the line on the filter with the coloured part facing outside.
c. Ensure you allow the pre-heating of the stick and you do not pull it out or move during the usage.

3. Device is outside the optimal temperature range:
a. If the holder is used outside the optimal temperature range (0°C - 40°C), the device may need to use more energy. This may discharge the battery more rapidly.
b. Bring the device to the optimal temperature range.

4. Pause Mode activated by error:
If you accidentally swiped down your finger across the entire Touch Screen, you activated the Pause Mode. The usage will temporarily stop. If the usage is not resumed within 8 mins, the usage will end.