How do you check amp reading on a 12volt cooling fan?

To check the amp reading on a 12-volt cooling fan, you'll need a multimeter set to the ammeter function. First, disconnect the power supply to the fan and then connect the multimeter in series with the fan by placing the multimeter leads between the fan's power source and the fan itself. Once the connections are secure, reconnect the power supply and turn on the fan to read the current in amps displayed on the multimeter. Ensure safety precautions are taken to avoid short circuits or damage.