CHICAGO (Reuters) - Maytag Corp. agreed to recall about 636,000 Hoover vacuum cleaners due to defective on-off switches that can overheat the handle and tool area of the vacuum, causing a fire hazard, the U.S. Consumer Product Safety Commission said.

Maytag has received reports of 249 vacuums overheating, with one report of a minor burn injury, the CPSC said in a news release.

The units recalled are models of Hoover Self-Propelled Upright Vacuum Cleaners. Consumers should stop uusing the vacuums immediately and contact Maytag to schedule a free repair, the CSPC said. Consumers can contact Maytag at 800-250-6075.

The vacuum cleaners were sold from May 1998 through July 2000 for $259 to $279, the CSPC said. A Maytag spokesman could not immediately comment on the recall.