SiBE31-801_C Troubleshooting by Indication on the Remote ControllerTroubleshooting 3124.53 “UA” Improper Combination of Indoor and Outdoor Units,Indoor Units and Remote ControllerRemoteControllerDisplayUAApplicableModelsAll models of indoor unitRTSQ8P~16P (Outdoor Unit) and function unitMethod ofMalfunctionDetectionWhen the model data is different between the indoor units, outdoor units and function units.When the number of indoor unit is out of the permissible range.MalfunctionDecisionConditionsThe malfunction decision is made as soon as either of the abnormalities aforementioned isdetected.SupposedCauses Excess of connected indoor units Defect of outdoor unit PCB (A1P) Mismatching of the refrigerant type of indoor and outdoor unit. Setting of outdoor PCB was not conducted after replacing to spare parts PCB.
