Most “not working” vape pens are simply clogged. Thick oil can block airflow, especially in colder weather. Try gently warming the cartridge in your hands and taking a slow, steady pull.
If nothing happens at all, your battery may be dead or disconnected. Recharge rechargeable pens fully, or check if a disposable has actually run out of power.
Sometimes disposables stop working before the oil is finished. This can be due to manufacturing faults or improper storage.
For 510-thread devices, unscrew and reconnect the cartridge to ensure proper contact.
Cannabis oil can thicken over time, especially in colder environments, making it hard to vaporise properly.
If you taste a burnt flavour, the coil is likely finished and the cartridge needs replacing.
Residue or oil buildup in the mouthpiece can block airflow. A gentle clean can often restore performance.