Why Does My Toshiba Power Supply Keep Burning Out?

Laptop power sources can fail due to heat or electrical surges.

Standard AC power converters power and charge Toshiba laptop computers. The Toshiba power converters reduce the 120-volt electricity from a standard outlet to about 18 volts. Various factors may cause these power converters to burn out.

Heat

All laptop power supplies generate heat as they convert voltage, and the effects of this heat are cumulative with continuous use. Power units can wear down over time or burn out if overheated. Operate power supplies in well-ventilated areas and ensure they are uncovered. Unplug the power supply when not in use.

Power Surges

All electrical systems are prone to electrical surges, which briefly change the amount of voltage that runs through an outlet. Surges can damage components inside the power converter. To protect the converter, use a surge protector and plug your power supply cord into the protector.

Defective Units

Some power supplies may simply be defective. Internal components of power supplies are connected with solder, which may not form an ideal connection during the manufacturing process. Toshiba offers various levels of warranty coverage for defective power supplies.

References

• Greg Briggs' Technical Articles; Fixing Laptop Power Problems; Greg Briggs
• Sunvalley.us: Pay Attention to Some Laptop Power Supply Problem

Resources

• Toshiba: Toshiba AC Adapters