Beretta BU9 Nano Beretta BU Nano User Manual - Page 52

TROUBLESHOOTING WARNING: Do not attempt to make repairs to any firearm without proper knowledge or training. Do not alter parts or use substitute parts not made by Beretta. Any necessary alterations or adjustments to the operating mechanism should be performed by the Manufacturer or by its Local Official Distributor. WARNING: Do not attempt to alter the internal parts of your pistol's firing mechanism. Altering internal parts can cause unsafe condition. WARNING: Altering the internal parts of your pistol's firing mechanism voids the manufacturer's warranty. MALFUNCTION Mis-introduction of a cartridge into the chamber PROBABLE CAUSE Defective cartridge REMEDY Inspect and replace cartridge Mis-fire Defective cartridge Replace cartridge Dirty cartridge chamber Mis-extraction or defective extraction Defective or dirty ammunition Clean cartridge chamber Replace or clean car tridges Dirt under the extractor Clean the extractor seat 52