Use a vacuum to remove any dirt or debris.
How to clean a rooftop ac unit.
Sorry about the camera shaking.
Be sure to use your garden hose and not a power washer as too much force could bend the fins inside the air conditioning unit.
Whichever cleaner you choose spray it on the coils and let the product soak for 15 20 minutes.
The simplest and most effective way to keep your ac running smoothly is changing your filter once a month.
Then spray the coils using a coil cleaner.
If possible use compressed air to clean the coil being careful not to bend the fins of the coil.
The evaporator usually sits in an inaccessible spot inside a metal duct downstream from the blower figure a.
Spray the coil with water from the hose if its outdoors.
Reinstall the drain tube and turn the power back on.
Their purpose is to clean the air by capturing the dirt and dust which is contained within the incoming outside fresh air.
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Poke a pipe cleaner into the drain port and clean out any debris.
7 tips for maintaining your ac unit.
2 keep your coils clean.
Then use a garden hose set to a gentle spray to flush out loose debris.
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If water must be used be careful that the water does not overflow from the drain pan and that the water pressure is not too high as that may force the water into the ductwork.
These usually slide out of the unit from the service door.
Depending on how dirty the coils are you may need to repeat this step a few times until the unit is reasonably clear of dust and debris.
3 keep surrounding shrubbery trimmed.
Here s an example of a dirty rooftop unit and the steps taken to clean the condenser and evaporator.
Whenever doing any work with electronics its important to turn the electricity off and check voltage on the unit with a.
Rooftop unit filters after the dampers we ll find the filters.
1 change your filter.
Spray the coils down to remove any loose dirt and prepare the coil for a spray cleaner.