Carrier is recalling about 285,000 packaged terminal air conditioners and heat pumps. About 185,000 were recalled in November 2007.
The power cord plug can overheat, posing a fire hazard to consumers, the company and U.S. Consumer Product Safety Commission said.
Carrier has received reports of about 47 incidents of overheating. Two of them were hotel fires. One fire involved a consumer suffering burns and smoke inhalation. The other incidents involved scorched or melted cord heads or wall outlets with no injuries reported.