What is the process for cleaning split air conditioners?

Air conditioning units play a vital role in maintaining a comfortable environment for both residential and commercial spaces, particularly during periods of intense heat.

Among the various cooling systems available, split air conditioners stand out due to their compact design and lack of ducts. The indoor component takes the form of an elongated rectangle seamlessly integrated into the interior wall, while its outdoor counterpart, referred to as a condenser or compressor, adopts the appearance of a sizable metal enclosure. The efficiency of any air conditioning system hinges on its internal mechanisms; thus, it becomes imperative to routinely inspect and cleanse your split air conditioners unit. Commence the maintenance process by addressing and sanitizing the indoor air conditioners component before extending your efforts to encompass the cleaning of the condenser situated outdoors.

A - Cleaning the Indoor Unit

1. Encase the entire split air conditioners system in a cleaning bag. Surround the appliance with a new cleaning bag to prevent dust or dirt from reaching the floor. These bags can be purchased online for less than $20. • Opt for a bag with a cinch for adjustable sizing. • An ordinary trash bag can be used if a specialized cleaning bag isn't available.
2. Turn off the power and raise the front panel. Locate the relevant circuit breaker or power source and deactivate the power to the split air conditioners before opening the front panel. Release the latches on the front of the air conditioners unit to lift it, granting access to the interior. • Ensure the power cut-off applies to both indoor and outdoor components of the cooling system.
3. Extract the air filters from the split air conditioners. The rectangular air filters positioned at the front of the appliance need to be removed and cleaned for optimal performance. Release a side tab on each filter to detach them. Shake the filters outdoors first to dislodge noticeable dust and dirt prior to cleaning. • Refer to the manufacturer's guide if there are no obvious tabs for opening.
4. Rinse the air filters using running water. Take the air filters to a sink or large basin and rinse them with cool tap water. For moderately dirty filters, rinsing may suffice to remove dust. If more thorough cleaning is needed, gently scrub with a mild cleaning detergent using a sponge or cleaning pad. Rinse and allow them to air dry. • Clean the filters at least every other month.
5. Remove dust from the cooling fins. Attach a slim canister to an air blower and use it to dislodge dust from the back of the split air conditioners. The cooling fins resemble metallic lines against the air conditioners's rear surface. Ensure the entire fin area is blown over. • A brush or canister vacuum attachment can be useful as well.
6. Clean the coils with a no-rinse evaporator spray and let them dry. Apply a no-rinse evaporator cleaner to the coils and allow it to sit for 20 minutes or more. The coils are rounded metal pieces running across the indoor unit's center. • Evaporator cleaners can be purchased online.
7. Sanitize the coils with antifungal cleaner to prevent mold growth. Use antifungal spray on the back of the air conditioner to prevent the formation of toxins and spores. Allow the spray to set for 5 minutes before replacing the air filters. • If the spray is hard to find locally, consider online sources.
8. Reinstall the air filters. Put the air filters back in their original position once they're clean and dry. They should easily slide into place. Consult your owner's manual if assembly proves tricky. These refreshed filters ensure clean and cool air circulation.
9. Clear drain line clogs by flushing the drain lines. Prevent clogs by disconnecting the hose or pipe that separates indoor and outdoor units. Use a pressurized flush kit to push water or cleaner through the drainpipe. Allow the drain line to air-dry for at least an hour before reconnecting the hose and turning on the air conditioners. • Flushing both ways and using a pressurized nozzle can be helpful. • Pressurized flush kits are available online.
10. Turn on the split air conditioners to verify functionality. Restore power using the circuit breaker or power source. Check if cold air is emanating from the air conditioners. Enjoy the clean and refreshing air. • A wire or long piece of metal can be used to remove clogs if needed. • If issues persist, consider seeking assistance from a professional technician. • Keep the cleaning bag in place initially, as the air conditioners might discharge dirty water. Remove and dispose of the bag once all waste has been expelled.

B- Cleaning the Exterior Unit

1.  Disable the power supply to your outdoor condenser. Disconnect or deactivate your outdoor split air conditioners unit to ensure that it is not receiving any electrical power. This precaution is necessary as you will be cleaning the air conditioners fins with cold water. Identify the power source, which could be connected to a breaker or have its own dedicated power supply. Safely deactivate this power source to ensure complete shutdown.
2.  Utilize a vacuum with a brush attachment to clean the condenser fins. Set up a vacuum outdoors and attach a brush accessory to its nozzle. The condenser fins are slender, vertical metal components that line the interior of the metal unit. Activate the vacuum and eliminate any visible dust and debris from the exterior unit by moving the vacuum in long, straight motions. Employ both horizontal and vertical movements until all dirt and leaves are removed from the condenser.
3. Straighten bent metal fins using a long knife if needed. Insert a long dinner knife into the gaps between any bent metal fins. Ensuring that all fins are straight and fully functional is essential for optimal condenser performance.
4. Unscrew the cover of the outdoor unit to access and remove the fan. Utilize a screwdriver or another pointed tool to detach the grille located on top of the condenser. Prior to cleaning the fins, it's necessary to detach electrical components, specifically the fan. With the aid of a wrench or screwdriver, release any bolts or screws securing the fan, allowing you to lift it out of the metal unit. Note that the fan remains connected to the condenser and cannot be completely removed.
5. Cleanse the fins with a hose and allow the unit to thoroughly dry. Activate a garden hose and wash the air conditioners condenser fins from within the metal unit. This rinsing process ensures the fins are clear and debris-free, promoting efficient condenser operation. Allow the interior of the outdoor unit to air dry completely before proceeding.
6.  Reassemble the displaced components before restoring power. Using appropriate tools, secure the fan back into the condenser unit. Utilize a screwdriver to reattach the top grille to the outdoor unit. Once all components are securely in place, restore power by either switching on the circuit breaker or plugging in the unit.

 if your outdoor unit encounters problems, don't hesitate to seek professional assistance.