SiBE811001EB TroubleshootingCONVENI-PACK 1628.4 Troubleshooting by Indication on the Remote Controller8.4.1 Error of External Protection DeviceError Code A0ApplicableModelsAll indoor modelsMethod of ErrorDetectionDetect open or short circuit between external input terminals in indoor unitError DecisionConditionsWhen an open circuit occurs between external input terminals with the remote controller set to"external ON/OFF terminal"SupposedCauses Actuation of external protection device Improper field setting Defective indoor unit PCBTroubleshootingCaution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.External protectiondevice is connected toterminals T1 and T2 ofthe indoor unitterminal strip.YESYESNONOThe settingposition is set to“03”.Check the setting state of the ON/OFFinput from outside by remotecontroller.Actuation of external protectiondevice.Probe the cause of actuation ofthe external protection deviceand then take countermeasuresagainst it.Change the setting position to"01" or "02" .Replace the indoor unit PCB.
