Found metal duct leaking in the manufacture sinew ( vapor barrier). The lose of air not returning to unit. so it is pulling hot moist air from every penetration in the home. One penetration was letting in 81 degree air in home right in the living room area. The unit is doing all it can do. Until the issues are corrected under home and through out home. The unit will never keep up. Recommend using a subcontractor who specializes in manufactured home repair. As, the issue is the vapor barrier and insulation has to be put back correctly or other issues can occur.