I performed a 3 system cooling maintenance. The systems are 2 mini splits. One of these systems had 3 heads. The other has 1 head. 1 main unit with 3 zones. I checked amps, capacitors, filters, drains, electrical, and cleanliness. I found that everything mini split related needs to be cleaned. The normal mini split heads would be good with no rinse cleaner. The cassettes need to be pumped down and pulled be cleaned without causing damage. The outdoor units need to be chemically cleaned with the portable jetter. I request3d pricing for the cleanings and quoted the normal mini split heads.