1. find which room /rooms not working
2. isolate these rooms, check circuit breaker, 短路should jump circuit breaker.
sometimes it is difficult.
1. find which room /rooms not working
2. isolate these rooms, check circuit breaker, 短路should jump circuit breaker.
sometimes it is difficult.
• already tried. thanks! -hc29- ♀ (0 bytes) () 12/28/2010 postreply 12:31:55
• if -比花花还花- ♂ (220 bytes) () 12/28/2010 postreply 13:18:01
• 你说的这些都试了。没有发现问题。thanks! -hc29- ♀ (0 bytes) () 12/28/2010 postreply 16:12:08