SiBE31-801_C Troubleshooting by Indication on the Remote ControllerTroubleshooting 2444.15 “E3” Outdoor Unit: Actuation of High Pressure SwitchRemoteControllerDisplayE3ApplicableModelsRTSQ8P~16P (Outdoor Unit), BTSQ20P (Function Unit)Method ofMalfunctionDetectionAbnormality is detected when the contact of the high pressure protection switch opens.MalfunctionDecisionConditionsError is generated when the high pressure switch activation count reaches the number specificto the operation mode.(Reference) Operating pressure of high pressure switchOperating pressure: 4.0MPaReset pressure: 3.0MPaSupposedCauses Actuation of outdoor unit high pressure switch Defect of high pressure switch Defect of outdoor unit main PCB (A1P) Instantaneous power failure Faulty high pressure sensor