Samsung AQB09JJWC Service Manual

Also see for AQB09JJWC: User manual User manual Service manual

Contents

Samsung AQB09JJWC Service Manual Manual pdf 88 page image

12-20 Samsung Electronics12-3-4 Outdoor Detailed Inspection ProcedureNo Procedure Inspection Method Cause1 Wait 30 seconds over afterdisconnecting the power cableCheck the outdoor PCB.1) Is C101 discharged?2) Is the resistance of both terminals of C101 opened?3) Is the fuse of EMI PCB normal?4) Is the reactor wire connected?• Over Current• Inner short of PCB• BLDC FAN Motor Error2 Check the outdoor unit PCB. 1) Is R001 200ohm?2) Does RY503 operate normally?(IC55 & 8: 0V, 4: 5V)3) Is the fuse normal?• Outdoor PCB Error• Relay(RY503) Error• IC55 Error3 Check the LED lighting afterpower supply.1) Normal: Red: Light On, Green: Flickering,Yellow: Light Off?2) Is the voltage of C101 250V over?3) Is the input of IC19 8V, and the output 5V?4) Recheck after disassembling BLDC FAN Wire.• Inner short of outdoor PCB• Wrong assembly of outdoor PCB• BLDC FAN Error4 Check the condition ofindoor & outdoor connectioncable.1) Is the green LED light on once per second?2) Is the indoor & outdoor connection cable connectedin order?3) Is the grounding wire connected to the both ofindoor & outdoor unit?• Wrong connection of Indoor/Outdoorwiring• Wrong assembly of outdoorcommunication circuit5 Check the Comp Wire. 1) Is it connected red, blue, and yellow in order incounter clockwise.2) Are the valve and its installation condition good?3) Is the installation condition of outdoor unit?• Wrong assembly• Installation condition is bad.6 Check the BLDC Fan. 1) Is CN01 1, 3 over 250V?2) Is CN01 3, 5 within 1~5V?3) Is the voltage of CN01 6 changed?4) Is the resistance of BLDC Motor 1, 3 opened afterpower off?• Outdoor PCB Error• BLDC Motor ErrorTroubleshooting26006A(2)_2.indd 20 2006-04-14 ｿﾀﾈﾄ 5:16:14