Troubleshooting SiBE041102_A70 Service Diagnosis4.14 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 60°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 electronic expansion valve or coil Defective outdoor heat exchanger thermistor Defective outdoor unit PCBTroubleshootingCheck No.01Refer to P.87Check No.12Refer to P.89Check No.17Refer to P.92Check No.18Refer to P.93Check No.19Refer to P.93(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 electronicexpansion valve or 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 electronicexpansion valve.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.
