The single most common reason a toy crane machine stops working is a power supply failure or interruption. This fundamental issue can manifest in several ways and often mimics other problems. The machine might be completely dead, with no lights or sounds, or it may power on but fail to initiate a game cycle. The culprit is frequently a loose or disconnected power cord at the wall outlet or at the back of the machine. A tripped circuit breaker or a blown fuse inside the machine's power supply unit is another typical cause. Before investigating more complex mechanical or software issues, always check the power source first. Ensure the plug is firmly seated, test the outlet with another device, and inspect the machine's internal fuse if you are qualified to do so. This simple step resolves a significant percentage of "broken" crane machine complaints. Other frequent reasons include coin or bill acceptor jams, which prevent game credits from registering, and physical obstructions in the claw's gear track or a snapped claw cable. Occasionally, software freezes require a full power cycle—turning the machine off, waiting 30 seconds, and turning it back on—to reset the main control board.