[Naptown Chief]

Originally Posted by Chief Roundup

There is some truth in this post. Your filter should be clean to allow proper air flow. If your filter is dirty it will not allow enough air flow for the unit to operate properly. It can cause an indoor coil/evaporator to freeze up.
I would say to also check the cleanliness of your outdoor unit/condenser. If you cannot see through the fins on the coils of the outdoor they need to be cleaned. If those are not clean the unit cannot dissipate the heat that is necessary. Which effects its ability to cool and it efficiency. You don't have to have anything more than water and a decent spray nozzle to clean that outdoor unit. You just have to be careful not to bend the fins over on the coil.

Indeed.