Troubleshooting (OP: Unified ON/OFF Controller) SiBE28-805220 Troubleshooting5. Troubleshooting (OP: Unified ON/OFF Controller)5.1 Operation Lamp BlinksRemoteControllerDisplayOperation lamp blinksApplicableModelsAll model of indoor unitsUnified ON/OFF controllerMethod ofMalfunctionDetectionDetect the malfunction according to DIII-NET transmission data.MalfunctionDecisionConditionsSupposedCauses Malfunction of transmission between optional central controller and indoor unit Connector for setting master controller is disconnected Defect of unified ON/OFF controller PC board Defect of indoor unit PC board Malfunction of air conditioner
