Arrived today for humidity problems inside the apartment. Equipment is 2021 2 ton Carrier heat pump system. Found floor and studs in the walls are rotating out needs repaired this will cause air conditioner to pull air into apartment. Old air conditioning needs pulled out and sealed off from pulling outside air from outside into apartment equipment door needs replaced with insulated door this will also pull air from outside into apartment equipment. Customer doesn’t own apartment she just rents. She was trying to figure out what is causing the problem. All of the problems the customers are experiencing will cause humidity problems inside the home.