TroubleshootingSamsung Electronics 115Is the S-netestimated value and the Manifold Gaugevalue in range?Are the Indoor Unitand Outdoor Unit EEV normallyoperating?Are there any blockage insidethe pipe? (filter etc.)Check the refrigerant amount.When cooling operation,water temperature, quantity, or heating operation,indoor fan operates normally do?Auto Trial OperationOpen the Service ValveReplace High Pressure sensorCheck the relevant EEVPipe inspectionCheck the water pipes or Replacerelevant component(motor or fan)YesYesYesNoYesAre all service valves open?Connect S-net and Manifold Gauge.(essential requirement)NoNoNoYesNo1. Cause of problem4-3-31 : Comp. Down due to High Pressure Protection ControlOutdoor unitdisplay ( Water Cooled )IndoorunitdisplayDuct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo: ON : Flash ×: OFFJudgmentMethod ∙ Value of the high pressure sensor is detected at 41kg/cm² or moreCause ofproblem∙ Overheat of supplying water∙ Shortage of supplying water∙ Outdoor heat exchanger is contaminated.∙ Service valve locked/Fill refrigerant∙ Indoor unit fan motor problem(constrained, defective)∙ Service valve locked/Excessive refrigerant4-3 Appropriate Measures for Different Symptom (cont.)
