No dismantling should be necessary if you have the right equipment to do this

Note: You may want to turn on the air conditioner before removing the bag to allow the excess water on the rotor blade to be spinned off into the bag. They can damage your cooling fins or rotor blades or even corrode other parts of your fan coil unit.Cleaning Mini Split Air Conditioners is not as daunting a task as most people perceive it to be. Use a flash light if you have difficulty locating the fan blade. ) - A Wash Bag - A Gardening Compress Air Sprayer- Maybe a philips screw driver if your air conditioner is extremely clogged with dirt What you would need is a very good chemical cleaning solution that is custom designed to lift the sticky dirt and grime from the fan coil fin surfaces and the cylindrical fan blade. 1. Contrary to what most people believe, it is perfectly safe to wash the FCU directly on the wall. No dismantling should be necessary if you have the right equipment to do this. The right chemical cleaner is so important for this method to work well since the chemical cleaner has to be strong enough to lift the sticky dirt from the cooling fins all the way into across the entire thickness of the coil which can be more than an inch thick across its cross-section. Only 10%, usually to the right of the unit contains all the electrical components and electric motor.. Spray the chemical cleaner onto the coils and the fan rotor. Wait a while for the chemical to soak in.2. Enjoy. List of Items needed- A safe and strong chemical Detergent (Note: Do not use industrial cleaners.I hope this will help you safe a lot of money and time. It sure helped me! I advise you to watch the video to get a clearer idea of exactly how simple this process is. Remove the wash bag and dispose off the waste water in the toilet bowl. Just look into the passage where the air usually flows out. Wash the filters separately in the toilet or sink. Wear the Wash Bag around the air conditioner fan coil unit. Remove all the front cover and filters before you start. Make sure to get the spray all around the rotor blade. Wipe dry and replace the filters and cover. All you need is 3 steps to clean your split air conditioner.3. 90% of the Fan Coil Unit (FCU), the one where cold air comes out of, is waterproof. This area is well protected from the rest of the blower since it is inherent that condensation will form along SAE flare flanges the inside of the coils throughout the entire length of the fan coil. Then rinse the fan coil and the rotor blade thoroughly with fresh water until clean using the pressure sprayer jet to loosen all the dirt. Done! Since this is so easy, I now clean each air conditioner every 3 months and enjoy the fresh clean cool air without paying the hefty service prices or spending huge amount of time servicing them.