TroubleshootingSamsung Electronics 1074-3-23 High Pressure sensor error (Open/Short)1. High Pressure sensor Open/Short error determination method1) Identifies from when power is supplied or 2 minutes after RESET, and only when set is stopped.2) An Open/Short error will occur if the input voltage standard range of 0.5V ~ 4.95V is exceeded.2. Inspection MethodReplace High Pressure sensorPlease re-inspect after connectingthe connector to the PBANoYesHigh pressure sensorconnector (CN42) connectedto PBA?Refill refrigerant after vacuumNoYesIs there refrigerant inside the set?(Please check by connecting the Manifold gaugeto the service valve)Replace PBANoYesHigh pressure sensorterminal of PBA : Is the voltage between3 and 4 pins 5V?The ف mark is the 1st pin on the PBA.Outdoor unitdisplayIndoorunitdisplayDuct, 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 ∙ Detect according to temperature detected with the high pressure sensor.Cause ofproblem ∙ Disconnection or breakdown of relevant sensor.4-3 Appropriate Measures for Different Symptom (cont.)
