When a Class K extinguisher nozzle is clogged, what action should you take?

• A. Force the nozzle to clear
• B. Use the extinguisher anyway
• C. Replace the extinguisher or have it serviced and recharged
• D. Discard the extinguisher without service

Answer: (C)

When a Class K extinguisher nozzle is clogged, the safest and most effective action is to have the extinguisher replaced or serviced and recharged by a qualified professional. A clogged nozzle prevents the extinguisher from delivering its wet chemical efficiently, which can make the unit unreliable in an emergency. Forcibly clearing the blockage or using the extinguisher in that condition could damage the valve, release the agent unintentionally, or leave you with a nonfunctional device during a fire. A trained technician can clear the blockage if possible, verify that the entire unit is clean and pressurized correctly, replace any damaged components, and recharge the extinguisher so it operates as designed. If it cannot be restored to proper condition, replacement ensures you have a reliable extinguisher on hand. Regular maintenance and proper servicing help prevent this situation and keep the unit ready for use.