Samsung WF448 Series Troubleshooting Manual

Fast Track TroubleshootingModel: WF448***/XAABOM ModelsWF448AAW/XAAWF448AAP/XAAPublication # APWF448 Revision Date 5/16/2012Quick Test Mode:Note: This test erases all faults and memory :To enter press Soil, Signal, & Power simultaneouslywith the power off.1. All LED’s light up and the washer beeps as it en-ters the Quick Test Mode.2. The unit displays the software version for a sec-ond then clears the EEprom.3. After the displaying the software version, LCD willdisplay Model information. If EEEE is displayed thePCB ass’y is defective.4. When the version is displayed, turn the Jog-Dial sothat the version disappears. Press the following keysto test the various componentsPress Spin to test Door Lock/Unlock circuitPress Temp to cycle through the Water Valves circuittest in this order: Pre-Wash, Bleach, Cold Main, Hot, &Steam, then off.Press Soil Level to test Circulation/Drain Pump.Press Signal to test the Water/Steam Heater.When either Test or Spin is displayed on the LCD,press Start/Pause to conduct the motor test.In Test mode, you can test the clockwise and coun-terclockwise movement of the motor. However, thewater level must satisfy the heater water level (24300)to enter Test mode.In Spin mode, you can test the motor at a high rpm.Service Mode:This mode allows more detailed operation tests and trouble-shooting, to enter press Signal & Extra Rinsesimultaneously with the power on.In Service Mode the following tests can be performed:Quick Spin Test: Press Delay Start & Silver Care. This accel-erates the drum motor from 0 to max RPM over a few minutes.Note: Stay with the washer during this test, out of balance detec-tion is bypassed and the door may not lock. Press the Start/Pause during the test to hold its spinning speed for 10 minutesbefore going back to Quick Spin Test Mode.Cycle Count: Press the Signal to see how many times the unitwas usedSoft Ware #: Press the Soil to see the software version Info.Fast Time Down: Press the Temp to advance to the next cycleFault Code Test: Press the Silver Care to view the stored faultcodes – then turn Jog Dial to view error codes. Press Start/Pause while the code is displayed to view the number of cyclessince the error occurred.Peripheral (Main PCB) input Tests:1. Select Extra Wash. Then turn the Jog-Dial so that the ExtraRinse LED is turned on. Next, press Start/Pause. The WaterTemperature will be displayed in Fahrenheit.2. Select Extra Wash. Then turn Jog-Dial so that the Extra SpinLED is turned on. Next, press Start/Pause. The door status willbe displayed (OP if open, CL if closed).3. Select Extra Wash. Then turn the Jog-Dial so that the DelayStart LED is turned on. Next, press the Start/Pause. The doorlock Switch status will be displayed (UL if unlocked, Lo iflocked).4. Select Extra Wash. Then turn the Jog-Dial so that the PreWash LED is turned on. Next, press the Start/Pause. The Wa-ter Frequency will be displayed.5. Select Extra Wash. Then turn the Jog-Dial so that My CycleLED is turned on. Next, press Start/Pause. The AG Kit statuswill be displayed after 3 seconds. (“ㅂE” if the AG kit is abnor-mal. “—” if the AG Kit is working properly)IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet isintended for use by persons having electrical, electronic, and mechanical experienceand knowledge at a level generally considered acceptable in the appliance repair trade.Any attempt to repair a major appliance may result in personal injury and propertydamage. The manufacturer or seller cannot be responsible, nor assume any liability forinjury or damage of any kind arising from the use of this data sheet.Please Note: There arethree Versions of thismodel, verify you are order-ing the correct parts for theVersion you are servicing.EEPROM Clear CheckPower off, Press Delay Start, Signal and Power Key atthe same time. Good = Good Fail = FAiLAll memory will be cleared, including Fault CodesThis should be done when a new Main PCB is installedCaution: Retrieve error codes from “Service Mode” BEFORE entering “Quick Test Mode”