There are several common reasons why a fire extinguisher fails to extinguish a fire. In many fire incidents, the problem is not the extinguisher itself, but how or when it is used: ✅ Top Reasons a Fire Extinguisher Doesn’t Work 1️⃣ Wrong Type of Extinguisher Each extinguisher is designed for specific fire classes: 🔘Water extinguisher will not work on electrical or flammable liquid fires 🔘CO₂ may not work well on deep-seated fires 🔘Dry chem cannot cool hot metals Using the wrong class can caus