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Model: WF448***/XAA
BOM Models
WF448AAW/XAA
WF448AAP/XAA
Please Note: There are
three Versions of this
model, verify you are order-
ing the correct parts for the
Version you are servicing.
Caution: Retrieve error codes from "Service Mode" BEFORE entering "Quick Test Mode"
Service Mode:
This mode allows more detailed operation tests and trouble-
shooting, to enter press Signal & Extra Rinse
simultaneously 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
Pause during the test to hold its spinning speed for 10 minutes
before going back to Quick Spin Test Mode.
Cycle Count: Press the Signal to see how many times the unit
was used
Soft Ware #: Press the Soil to see the software version Info.
Fast Time Down: Press the Temp to advance to the next cycle
Fault Code Test: Press the Silver Care to view the stored fault
codes – then turn Jog Dial to view error codes. Press Start/
Pause while the code is displayed to view the number of cycles
since the error occurred.
Peripheral (Main PCB) input Tests:
1. Select Extra Wash. Then turn the Jog-Dial so that the Extra
Rinse LED is turned on. Next, press Start/Pause. The Water
Temperature will be displayed in Fahrenheit.
2. Select Extra Wash. Then turn Jog-Dial so that the Extra Spin
LED is turned on. Next, press Start/Pause. The door status will
be displayed (OP if open, CL if closed).
3. Select Extra Wash. Then turn the Jog-Dial so that the Delay
Start LED is turned on. Next, press the Start/Pause. The door
lock Switch status will be displayed (UL if unlocked, Lo if
locked).
4. Select Extra Wash. Then turn the Jog-Dial so that the Pre
Wash 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 Cycle
LED is turned on. Next, press Start/Pause. The AG Kit status
will be displayed after 3 seconds. ("ㅂE" if the AG kit is abnor-
mal. "—" if the AG Kit is working properly)
Fast Track Troubleshooting
IMPORTANT SAFETY NOTICE – "For Technicians Only" This service data sheet is
intended for use by persons having electrical, electronic, and mechanical experience
and 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 property
damage. The manufacturer or seller cannot be responsible, nor assume any liability for
injury or damage of any kind arising from the use of this data sheet.
lock.
Press the Start/
Publication # APWF448 Revision Date 5/16/2012
Quick Test Mode:
Note: This test erases all faults and memory
To enter press Soil, Signal, & Power simultaneously
with 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
ond then clears the EEprom.
3. After the displaying the software version, LCD will
display Model information. If EEEE is displayed the
PCB ass'y is defective.
4. When the version is displayed, turn the Jog-Dial so
that the version disappears. Press the following keys
to test the various components
Press Spin to test Door Lock/Unlock circuit
Press Temp to cycle through the Water Valves circuit
test 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, the
water level must satisfy the heater water level (24300)
to enter Test mode.
In Spin mode, you can test the motor at a high rpm.
EEPROM Clear Check
Power off, Press Delay Start, Signal and Power Key at
the same time. Good = Good Fail = FAiL
All memory will be cleared, including Fault Codes
This should be done when a new Main PCB is installed
:
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Related Manuals for Samsung WF448 Series
Summary of Contents for Samsung WF448 Series
- Page 1 Fast Track Troubleshooting IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet is intended for use by persons having electrical, electronic, and mechanical experience Model: WF448***/XAA and knowledge at a level generally considered acceptable in the appliance repair trade. BOM Models Any attempt to repair a major appliance may result in personal injury and property WF448AAW/XAA...
- Page 3 Washer Connector Checks WF448 4 Water Temp Thermistor (Yel) 1 Door Lock Close (Blk) 1 Door Sw (Pnk) 5 Water Temp Thermistor Gnd (Org) 2 Door Lock Open (Wht) 3 Door Sw (Gry) 6 Water Level Sensor (Pnk) 3 Drain Pump (Vio) 7 AG Sensor (Brn) 7 Water Level Sensor (Vio) 4 Steam Valve (Brn)
- Page 4 Test 1 Test 2 Door Lock Check Connector CN2 Pin 3 (Gray) and CN3 Pin 1 (Black) When Door is Locked or Unlocked With Power Off, the resistance be- there is a pulse of 120VAC for a few tween these pins will be between 47 milliseconds.
- Page 5 Error Type Error Mode Details Check for Foreign material entering the pump or hoses. Drain Error Check to make sure the wiring harness is connected properly. Check the water pump terminal . Check for freezing Make sure to check the operating voltage. (An error occurs when Power Error under or over voltage is supplied.) Check whether a plug recepta- cle is used.
- Page 6 Error Type Error Mode Details This can be a short or a wire disconnected to the heater circuit. This Heater Error can also be problem with the tub contacting the heater or if the wa- ter in the tub is frozen or there is no water. The error is triggered by temperatures above 145C.
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Page 7: Selecting Language
P ath #2 P ath #1 Samsung washers and dryers can be stacked to maximize usable space. P ath #5 An optional stacking kit is available for purchase from your Samsung retailer P ath #4 P ath #3 When using non-HE...