What action should be taken if a carbon dioxide extinguisher weight loss is detected beyond the specified threshold?

• A. It must be recharged
• B. It must be replaced
• C. It must be moved to the workshop
• D. It must be drained

Answer: (A)

A CO2 extinguisher must be recharged when its weight drops beyond the specified threshold because that weight loss indicates a loss of charge and pressure. With the extinguisher not at the correct charge, it won’t function properly in a real fire. Recharging by a qualified technician restores the proper amount of CO2 and the required pressure, bringing the unit back to its rated performance. Replacing the cylinder would be only necessary if the bottle or valve is damaged or non-repairable, while draining or simply moving the unit doesn’t fix the issue and leaves it unusable in an emergency.