If you replace the main breaker box on a public building and when you turn the power back on what would cause a three phase air condition to start running backwards after the installation? -There was no problem before. Just curious , GRADY WILSON'S TV SERVICE GOMDWIL@xxxxxxx ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/