CAME OUT AND INSTALLED A 3XX 12HT 4 MINI SPLIT UNIT. MADE SURE SYSTEM WAS INSTALLED PROPERLY, AND REPLACE CAPACITOR. CHECK ALL ELECTRICAL CONNECTIONS. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT AND AIR FILTER. MADE SURE WORK AREA WAS CLEAN WHEN FINISH. RENEWED 2 UNITS.