The indoor unit of the AUX split-type air conditioner is leaking. Fault phenomenon: During the drainage experiment, the water discharge from the outdoor unit's drainage pipe was normal, but there was slight leakage from the bottom of the indoor unit. Analysis and maintenance: Based on the fault phenomenon, it is determined that condensation has occurred in the evaporator between the indoor and outdoor units. By checking the evaporator pipe joint located below the rear of the indoor unit, it was found that the insulation binding tape had loosened, losing its insulating effect and causing the water vapor in the air to condense upon cooling. Solution: Replace the insulation layer and re-wrap it with binding tape to eliminate the fault. Article source: Beijing AUX Air Conditioner Repair Phone http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3486891.