Test OperationSamsung Electronics 2876) Compressors∙ What to inspect: Compressor's operation electric current∙ Error code: None (“NG” is only indicated in the result report)∙ How to determine error: Compare the compressor's operation electric current and the reference electric current.∙ Perform inspection according to the steps shown below.Ŷ Precautions- To replace a component or inspect the PBA, be sure to cut off the power supply first.If inspection must be performed with the power supply on, exercise extra care to prevent electric shock.Are the specificationsof the power supplied to the outdoor unitand the cable connectionnormal?Is the compressor'soperation electric current (CT1, CT2) value 0when the compressor isnot active?Is the compressor'sphase-to-phase (U-V, V-W, W-U) resistancelower than 2Ω?Install an ammeter, and thenperform Trial Operation (cooling/heating)- See the instructions on Key operation modes.Is the valueindicated by the ammeteridentical with the compressor's operationelectric current (CT1, CT2)value?Is the operation cyclenormal?Is thecompressor's operation electric current(CT1, CT2) value normal?Perform Auto Trial Operation again.Take corrective measures.Replace the compressor.Perform Trial Operation (cooling/heating)- See the instructions on Key operation modes.Replace the inverter PBA.Replace the compressor.Replace the inverter PBA.Take corrective measures.Cut off the power supplied to the outdoor unit.YesYesYesYesYesYesNoNoNoNoNoNo9-1 Auto Trial Operation (cont.)9-1-3 How to resolve NG items (cont.)
