There are several steps to cleaning electric high-pressure airless sprayer. Turn off the airless spray gun safety. Turn off the sprayer equipment power switch and use the return valve to release the pressure in the equipment (just turn the return valve counterclockwise). Remove the nozzle and soak it in a small bucket with clean solvent or water and rotate the return valve counterclockwise (note: the paint sprayer return valve cannot be unscrewed in its entirety). Lift the airless suction tube so that it leaves the paint bucket and open the equipment so that the paint in the equipment flows out from the return tube. Prepare a metal bucket with water or clean solvent, please do not use industrial alcohol to clean the equipment, industrial alcohol will gum up the internal seals of the equipment. Put the suction tube into the metal bucket, make the water or solvent circulate in the equipment for 2-3 minutes, and turn off the power switch. In order to save the remaining paint in the paint tube, pull down the trigger by aligning the nozzle to the wall of the paint bucket, tighten the return valve clockwise, at this time, you need to pay attention to the splash of paint, when the solvent or clean water appears in the paint, close the spray nozzle and put the nozzle into the metal bucket. Knock down the trigger to make clean solvent or clear water circulate in the spray equipment for 2-3 minutes, turn off the power switch. Lift the suction tube to make the suction tube leave the metal barrel with clean water or solvent, and set the return valve in the return position. Turn on the power switch to make the solvent in the equipment discharged from the reflux tube. Prepare some clean solvent or water and use low pressure to make it circulate in the paint spray equipment until it is clean. If you use water to clean, you can add a little equipment protection liquid in the water, so that it can reduce the possibility of rusting in the equipment. Take out the suction tube from the metal barrel with solvent or water and clean the airless suction tube strainer. Check the equipment and nozzle filter screen for blockage and damage, and clean or replace if necessary. Remove the nozzle from the pail containing solvent or water and gently brush the nozzle clean with a soft brush and blow clean with compressed air and store in a dry place. WARNING: Since this equipment airless sprayer is a high pressure device, please read the cautions and warning labels on the operation manual carefully when operating.