SiBE041012_A TroubleshootingService Diagnosis 1004.16 High Pressure Control in CoolingRemoteControllerDisplayF6Method ofMalfunctionDetectionHigh-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation ifthe temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.MalfunctionDecisionConditions The temperature sensed by the outdoor heat exchanger thermistor rises above about 65°C. The error is cleared when the temperature drops below about 50°C.SupposedCauses The installation space is not large enough. Dirty outdoor heat exchanger Defective outdoor fan motor Defective stop valve Defective outdoor electronic expansion valve or coil Defective outdoor heat exchanger thermistor Defective outdoor unit PCBTroubleshootingCheck No.01Refer to P.123Check No.12Refer to P.125Check No.17Refer to P.130Check No.18Refer to P.130Check No.19Refer to P.131(R14413)CautionReplace the fan motor.Reconnect the connector orfan motor lead wires.Replace the stop valve.Replace the outdoor heatexchanger thermistor.Replace the outdoor unitPCB.Replace the outdoorelectronic expansion valveor the coil.Replace the outdoor unitPCB.Change the installationlocation or direction.Clean the outdoor heatexchanger.Check the installation space.NGOKOKNGNGOKOKOKNGNGCheck No. 19Check the outdoor fan.Check No. 18Check the dischargepressure.Check No. 12Check the outdoor electronicexpansion valvecoil.Check No. 01Check the outdoor heatexchanger thermistor.Check No. 17Check the installationcondition.Be sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.
