The devices have built-in filters which catch dirt, dust particles and air pollutants. All window ac units need to be cleaned and checked regularly. The filters should be washed and dust and debris should be removed from the condenser coil situated at the back of the unit. Dirty units may need to be cleaned with chemical agents.
It is important to check these parts are functioning properly. Faulty components can reduce the air flow and cause the unit to work less efficiently. A routine check will prevent insects, wasps and hornets from nesting in the cooling unit.
However, people who run window air con units can encounter other problems. Small problems can go undetected and this is one reason why it is important to maintain the cooling system. Here is a short list of common problems:
AC unit on but not blowing air – this may mean the fan needs to be replaced. Unplug the unit and oil the fan blades. If the unit still fails to work it might need a new motor.
Dirty or rusted coils and filters – Turn the power off, vacuum the coils and clean the air filters, this might do the trick. These parts gather dust and dirt, so the filters should be changed every four weeks. Ensure these parts are cleaned on a regular basis to allow the unit to function properly. A well-maintained cooling unit will use less energy.
A leaking unit – Units often leak because they are not positioned correctly. Ensure the unit is tilted outwards so that it drains properly.
I hope you have found these tips useful, however, business and homeowners owners should ensure their cooling systems are well-maintained. Contact a professional engineer and create a regular HVAC maintenance schedule.