First, a safety check
If the pen is swollen, cracked, hot to the touch or leaking heavily, stop now. Do not charge it. Take it to a battery recycling point. The fixes below are only for an otherwise undamaged pen.
1. Charge it
This solves more problems than anything else. A 2g pen can outlast its first charge, so give it 20 to 30 minutes on USB-C with a low-power charger, even if you think it has plenty left.
2. Check the window
If there is no oil left, the pen is finished. A burnt taste with an empty window means it is time to recycle it.
3. Warm it up
Cold oil gets thick and struggles to reach the coil. Hold the pen in your hand for a few minutes. Never use a lighter, a hairdryer or any other direct heat.
4. Clear a clog gently
Take a few short pulls with a pause between them. Do not poke anything into the mouthpiece, since that can damage the pen and push debris inward.
5. Slow your draw
Pulling very hard can stop the sensor from reading the draw properly. Try a soft, steady two-second inhale instead.
6. Decode the blinking light
Blinking usually points to a low battery or a draw held for too long. Charge it, wait a minute and try once more.
7. Check your charger
Swap to a different cable and a low-power USB port. A fast-charging brick can sometimes fail to start a tiny device.
When to contact us
If you bought your pen here and none of this helped, email info@chromecartdisposables.com with your order number and a photo. Our refund policy explains how we handle faulty products.
How to prevent most of these problems
Store the pen upright and at room temperature, top up the battery before it runs completely flat, and leave a little time between draws. Long back-to-back pulls are the quickest way to overheat a coil and pull thick oil into the airway. A small hard case also helps if the pen travels in a bag, since a cracked body cannot be fixed.
What not to do
Do not try to open the pen, refill it, or heat it with a flame or hot air. Do not push a pin or toothpick into the mouthpiece or the USB-C port. Do not keep using a pen that tastes chemical or burnt when there is still oil left. None of these are repairs, and some can be dangerous because the device contains a lithium battery.