Why is my fire extinguisher not spraying when I press the handle?

If the handle is pressed but nothing comes out, treat the extinguisher as unsafe until you have checked the simple external points first. The manuals make clear that the extinguisher should only be used as designed and should not be tampered with, so do not dismantle it or try to force the contents out. fileciteturn0file7turn0file8

1. Check that the safety pin or retaining part has been removed correctly and that the nozzle is pointing away from you and the surrounding area. Expected result: the mechanism is ready to operate. If the pin is still in place or the outlet is blocked, stop and do not continue testing.
2. Inspect the nozzle and hose for blockages, cracks or kinks. Expected result: the outlet should be clear and straight. Any obstruction may stop discharge or reduce flow. fileciteturn0file7turn0file8
3. Check the pressure gauge. Expected result: the needle is in the green zone. If it is not, the extinguisher may be empty or under-pressurised and should not be relied upon.
4. Stop using the extinguisher immediately if it still does not spray, if the hose or valve looks damaged, or if you suspect it is partly empty. If safe use is uncertain, contact the retailer or store where the product was purchased. fileciteturn0file7turn0file8