Samsung AQV09NSBN Service Manual

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Samsung ElectronicsNoNoYesYesYes12-2-2 The Outdoor unit power supply error1. Checklist :1) Are the input power voltage and the power connection correct?2) Is there no Fuse short in the indoor unit and outdoor unit?3) Is the cable connected correctly between the indoor unit and outdoor unit in order.4) Is the wire connected correctly to the terminal block of the indoor unit and outdoor unit?2. Troubleshooting procedureNoNoIs the voltage of indoor unitterminal block 1 and 2 correctafter power input?Pull out the power cordand execute the following stepafter 30 seconds.Is the outdoor unit normal?Is the outdoor unit normal?Is the reactor connected correctly?Is the +, - of C102 short?Is the R701 resistance ofindoor PCB 200Ω?Is the indoor unit fuse normal?Exchange the fuse.Connect the reactor wire.Disassemble the PCBfrom the case.Is there no error atthe insertion of PCB?Exchange the PCB.Exchange the fuse.Normal OperationExitYesYesYesYesYesYesNoNoNoExchange the PCB.Exchange the PCB.12-3TroubleshootingAre the BLDC FAN Wire1 and 3 short?Is the +,- of C102 short?Exchange the BLDC FAN.Exchange the PCB.