What do I do if the pin does not pop back up on my unused fire extinguisher?

If you have an unused disposable fire extinguisher and the pin does not pop back up, the unit should be replaced. If it is a First Alert Fire Extinguisher and it is still under warranty, contact Consumer Affairs at 1-800-323-9005 for warranty service. Please note: if you have trigger-test your First Alert disposable fire extinguisher, your warranty will be void.