SiBE121135_A Function of SA Indoor UnitFunction and Control 1042. Function of SA Indoor Unit2.1 Drain Pump Control2.1.1 When the Float Switch is Tripped While the Cooling Thermostat isON:∗1. (Normal operation):The purpose of residual operation is to completely drain any moisture adhering to the fin of theindoor heat exchanger when the thermostat goes off during cooling operation.∗2. (Malfunction residual):The remote controller displays A3 and the air conditioner comes to an abnormal stop in 5minutes if the float switch is turned OFF while the cooling thermostat is ON.2.1.2 When the Float Switch is Tripped While the Cooling Thermostat isOFF:∗3. (Malfunction residual):The remote controller displays A3 and the air conditioner comes to an abnormal stop if the floatswitch is turned OFF and not turned ON again within 5 minutes while the cooling thermostat isOFF.Float switchThe remote controller displays A3and the indoor unit stops.∗2) Malfunction residual∗1) Normal operation5 min. 5 sec.5 min.Drain pumpThermostat(running)(R16092)ONONOFFOFFONOFFFloat switchDrain pumpThermostat(running)ONONOFFOFFONOFFThe indoor unit enters malfunction treatment if the float switch is notreset within 5 minutes.The remote controller displays A3 and the indoor unit stops.∗35 sec. 5 sec.5 min.5 min.(R16093)