Si21-205 Troubleshooting Based on Equipment ConditionTroubleshooting 1191. Troubleshooting Based on Equipment ConditionEquipment Condition Remedy1 Equipment does not operate. See page 1202 Indoor fan operates, but compressor doesnot. See page 1213 Cooling / heating operation starts but stopsimmediately. See page 1234 After shutting down, equipment does notrestart for a while. See page 1245 Equipment operates but does not providecooling. See page 1256 Equipment operates but does not provideheating. See page 1277 Equipment discharges white mist. See page 1288 Equipment produces loud noise or shakes. See page 1299 Equipment discharges dust. See page 13010 Remote controller LCD displays “88.” See page 13111 Equipment emits odor. Room smell and cigarette odorsaccumulated inside the indoor unit aredischarged with air. Inside of the indoor unitmust be cleaned.12 Flap operates when power is turned on. It is normal. The flap initializes for accuratepositioning.13 Change of operation mode causes flap tomove. It is normal. There is a control function thatmoves the flap when operation mode ischanged.14 Fan operates in “M” mode during heatingeven if remote controller is set to “Low.” It is normal. It is caused by the activation ofthe overload control (airflow shift control).15 Flap automatically moves during cooling. It is normal. It is caused by the activation ofthe dew prevention function or ceilingsoiling prevention function.16 Indoor unit fan operates in “L” mode for 1minute in microcomputer-controlled drymode even if compressor is not operating.It is normal. The monitoring functionforcibly operates the fan for one minute.17 In simultaneous ON/OFF multi-systemsetup, indoor unit (sub) does not operate insync with the other indoor unit (main).(Flat, fan, etc.)It is normal. It is caused by a signaltransmission lag.18 Indoor unit fan operates after heatingoperation stops. It is normal. The fan operates in the “LL”mode for 60 to 100 seconds to dissipate theresidual heat in the heater.19 Drain pump operates when equipment isnot operating. It is normal. The drain pump continues tooperate for several minutes afterequipment is turned off.20 Horizontal wing sends air to differentdirections in cooling and heating even if it isset to the same position.It is normal. The airflow direction in cooling/dry operation is different from that inheating/fan operation.21 Flap remains horizontal even if it is set toSwing. It is normal. The flap does not swing in thethermostat OFF mode.
