Samsung AG010DSVAFG Service Manual

594-3-22. : COMP DOWN due to low pressure protection controlInverter / Hydro control part displayJudgment Method Inspection when the value of low pressure sensor is 1.8kg/cm2 (25.6 psi), or less for air conditioning and0.8kg/cm2 (11.4 psi) for heating.Cause of problem- Refrigerant shortage- Electronic expansion valve blocked- Low pressure sensor defective- Leakage of compressor discharge check valve of not-go-end outdoor unit-Error may be found when used in temperature range outside the conditions of use(Operating outside temperature at -25°C (-13°F) or less for heating and operating outside temperature at -15°C (5°F) or less for Cooling)예예예아니오예아니오아니오예아니오Is the S-netestimated value and the Manifold Gauge valuein range?Are the indoor unitand outdoor unit EEV normallyoperating?Are there any blockageinside the pipe? (filter etc.)Check the refrigerant amountIs there any leakagein the liquid pipe valve or the dischargecheck valve of the not-go-end outdoor unit whenonly some outdoor unitsare operating?Trial OperationReplace low pressure sensorCheck the relevant EEVCheck the pipingReplace relevant partsConnect S-net and Manifold Gauge(Essential requirement)NoNoYesYesYes1. Inspection MethodNoNoYesYes