Samsung AE040RXEDEG Service Manual

Also see for AE040RXEDEG: Service manual

Troubleshooting88Samsung ElectronicsYesYesYes4-5-4 Fan error (E458, E475)1. Check items2. Check procedureYesNoYesNoYesNoNoFAN 1 error(E458), FAN 2 error(E475)1) Are the input power voltage and power connection correct?2) Is the motor wire connected to the outdoor PCB correctly?3) Is there no obstacle at the surrounding of motor and propeller?4) Does the driver in the motor case broken?Is the connection of FAN housing certainly toPCB socket?(CN90, CN91) Check the connection of CN90 and CN91Take each Fan motor housing after 1 minutesfrom turning the powerExchange the FAN motor because of driverinside of the motor case brokenIs each resistance of FAN cable housing normal?(*)(*)Resistance of FAN cable housing at the normal temperature(10˚C~30˚C)wire pin number Resistance RemarkRED - BLACK 1-3 over 1MΩ +300V motor powerWHITE - BLACK 4-3 1KΩ ~ 2KΩ +15V control powerYELLOW - BLACK 5-3 200KΩ ~ 300KΩ controlBLUE - BLACK 6-3 10KΩ ~ 50KΩ pulseORANGE - BLACK 7-3 10KΩ ~ 50KΩ reverseMount each Fan housing to PCB socket andturn on the powerFollow the check procedure ofoutdoor unit power supply error checkIs the Pin voltage #1 - #3 of CN90 and 91over 250V?No Exchange INVERTER PCBIs the Pin voltage #5 - #3 of CN90 and 91 15V?No Exchange INVERTER PCBIs the Pin voltage #5 - #3 of CN90 and 91within 1-6V during the operation?Exchange the FAN motor not in rotationIs the Fan in rotation duringTEST operation in cooling modeCont.# TEST operation #press K1 or K2 button on theMAIN PCB after power on.