Major maintenance with a washing bag is one of the most effective air conditioning cleaning methods, since the air conditioner cover must be removed, to access the surfaces to be cleaned. There is a lot of dust on the heat exchanger of the air conditioner and the squirrel wheel, dirt and mold build up.
I put a laundry bag on the air conditioner, I spray the contaminated surface with a fungicide-killing air conditioning cleaning chemical and let it stand, until then, I will clean the outdoor unit. A lot of dust and aspen flowers are also deposited on the outdoor heat exchanger.
After the chemical dissolves the dirt indoors, the water jet removes the dirt with the help of a high-pressure cleaning machine, which goes through the laundry bag into the bucket.
So the climate is clean, circulates fresh air, like when he was new.
You can view them in a larger size by clicking on the images below.
Washing bag cleaning process
The right side of the squirrel wheel is already cleaned of dirt, while the left side is not
Dust build-up on the sprocket
Removing dust from the sprocket wheel
Mold build-up on the sprocket
Removing mold from the squirrel wheel
Water cleaning of the outdoor air conditioner
Cleaning the outdoor heat exchanger from aspen flowers
Cleaning the continuous layer of dust deposited on the outdoor heat exchanger
When cleaning outdoors, I sometimes run into obstacles, e.g.: wasp nest