Replace the filter.
If you’re unsure about the lubrication ports, check your owner’s manual.
You will either have to pull out the shutoff, pull down a handle or remove the fuse. If you don’t see a shutoff box, then turn off the circuit breaker that powers the A/C.
Check for grass, weeds, leaves and other debris that may block airflow. Trim any foliage to leave about 2 feet (61 cm) of space around the outdoor unit. Be careful not to damage the fins as you vacuum. They can bend easily. If necessary, straighten your fins with a dinner knife or a fin comb.
Wipe the fan clean with a damp cloth.
Clean out any clogs with a pipe cleaner or a small bristled brush.
Make sure the filter is dry before you put it back into the unit.
