Performed preventative maintenance on 2 GREE mini split systems. Model numbers: MULTI24HP230V1A0, MULTI24HP230V1A0. Serial numbers: 3017GS25326, 3017GS25325. 6 heads total in the house. Cleaned each filter for every head. Tested each remote to make sure the modes and temp settings were accurate. Checked the blower fan for each head to make sure they were not covered with dust. Poured water into each condensate trap and watched the water drain out properly. Checked each of the louvers to make sure they opened and closed properly. Checked for any growth due to mini splits being known to hold more moisture. Closed all of the panels and watched each head run. Went outside to the condensers. Checked the coils for any dirt build up. Removed the panels. Checked the electrical connections to make sure they were properly secure. Took an amp draw of the fan and compressor. Both are running within manufacture’s specs. Placed the panels back on the units and watched them run. Took a temp split for