Customer had us out today for a no cool upstairs. On arrival, tenant stated that the downstairs is cool, but the upstairs does not cool. The tenant also stated that the entire house is warm when temperatures exceeds 80 degrees as if the system can’t keep up. Upon inspection of the indoor system, found that ductwork is damaged allowing air to escape into the attic. The upstairs thermostat has been bypassed, the upstairs zoning has also been bypassed. The ductwork is also undersized, and some of the ductwork has collapsed. Also found that there is no filter in the filter vent, this has caused the blower wheel and evaporator coil to become extremely dirty, this also causes airflow restriction that results in a strain on the system. Upon inspection of the outdoor unit, found that the condenser coils are very dirty. Also found that the wiring for the unit is burnt and has exposed wire. This is a fire hazard, this also indicates that a fire happened with in the system. We left the system out