Customer concerned about unit not cooling properly. Unit is 30 years old and and rusty coils and interior components. Located the evaporator coil is compacted and not letting air to breathe properly. Needs to be pulled and cleaned properly to letting air breathe into the machine. Located dirty blower motor is caked with dirt and debris and needs to be pulled out and cleaned properly to ensure good air flow. Located the outside condenser unit coil is compacted and not letting air pass thru coil and breathe properly. Strongly recommend new unit replacement due old age equipment and no warranty. The unit is struggling to cooling the house and require repair cleaning will not extend life to this ac system. I have placed an estimate for cleaning old system. Not recommended on 30 yr old ac system.