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Model: WA48H7400
Bulletins:
SERVICE TEST MODE –
DELAY END
+
PRE SOAK
The motor speed will be displayed when started
(It displays 0 when the motor does not spin).
Quick Spin Test Mode - press the Delay End and Self Clean
Keys for 3 seconds - Cannot enter once cycle started
Starts spinning and reaches to its maximum RPM then speed
drops immediately.
Hold Quick Spin Test Mode, press the Start/Pause button. It
will stop accelerating and hold its speed for 10 mins.
Cycle Count Check Mode -press the Pre Soak Key.
Tally's the number of washings. The total number of
washings will light up and a signal LED will glow.
Max # of cycles is 1999 rolls to 0
S/W Version Check Mode - press the Soil Level Key
Board Input Test Mode - press the Delay End
Diagnostic Code Check Mode - press the extra rinse
POWER ON
3 SECONDS
Fast Track Trouble shooting
Publication # SM110414
QUICK TEST MODE –
+
SPIN
Definition of Quick Test Mode:
- Check operation of all LED's (Verify faulty LED).
- Check model and software version.
- Check different operating modes (e.g. water valve,
motor, door, drain pump, etc.).
All LED's light up & sends out Beep Sound when it entered
Displays software version for a sec and clears EEPROM
(MEMORY)
When version is displayed, turn Jog-Dial so that version
disappears.
Press the following keys to test the components.
- Temp. Key :
- Delay End Key : Door Lock/Unlock Test
- Spin :
Production Date: 11/04/14
POWER OFF
SOIL LEVEL
+ POWER
Water Valve Test
Drain Pump/Circulation Pump Test
TOGETHER
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Summary of Contents for Samsung WA48H7400
- Page 1 Fast Track Trouble shooting Model: WA48H7400 Publication # SM110414 Production Date: 11/04/14 Bulletins: POWER ON POWER OFF SERVICE TEST MODE – QUICK TEST MODE – SPIN DELAY END SOIL LEVEL + POWER PRE SOAK TOGETHER 3 SECONDS The motor speed will be displayed when started Definition of Quick Test Mode: (It displays 0 when the motor does not spin).
- Page 5 SUB PCB CN501 8. WATER THERM 9. CLUTCH SEN CN802 10. WATER SEN 1 CLUTH 6. RESET 11. WATER SEN 2 WL_MAIN 7. 5V 12. 5V STANDBY 8. GND 13. CLUTCH 9. 12V 10. POWER ON 15. GND...
- Page 6 Hall Sensor Check Water Valves/ Check Check Voltage at Pin #4 and #3 of CN9 Check Voltage at Pin #3 of CN1 and Pin #1,2,3,4 Tester Check = DC0.6V of CN4 When Valves operates = AC 120V Check Voltage at Pin #4 and #2 of CN9 Tester Check = DC0.6V Clutch-Motor Check Voltage at Pin #3 of CN1 and Pin #8 of CN4...
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Questions and answers
My washing machine starts but will stop during the cycle with no error message
The Samsung WA48H7400 washing machine may stop during the cycle without an error message due to issues that can be identified using the Quick Test Mode. This mode allows checking the operation of components such as water valves, motor, door, and drain pump. A malfunction in any of these—like the motor not spinning (display shows 0), a faulty door lock, or a drain issue—could cause the machine to stop without displaying an error. Running the Quick Test Mode helps diagnose such problems.
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