Changing/clean the filter is easy.
It is in the ceiling return grill.......just remove, wash/rinse/dry, re-install
Cleaning the coils........more involved then just vacuuming them off
Up on the roof remove shroud
That will give to easy access to the condenser coil.
If really dirty you may need to spray with a cleaner and then rinse of with hose. Straighten any bent fins (carefully) with a fin tool (any auto parts store)
The evap coil is under another cover. Just remove screws and cover for access. These one is a little more involved because with cover off there direct access to inside of rig. So place towels down into opening to soak up water from rinsing evap coil off. Will need a spray on cleaner also.
Check under the evap coil for dip pan.....it catches condensation off of evap coil and lets it drain away. Check that drain holes are clear.
Then reinstall covers and get down off the roof.
Basic roof top A/C
