Samsung WA48H7400 Troubleshooting Manual

Fast Track Trouble shooting

Model: WA48H7400

Bulletins:

Publication # SM110414 Production Date: 11/04/14

SERVICE TEST MODE – POWER ON

DELAY END

PRE SOAK +

3 SECONDS

QUICK TEST MODE – POWER OFF

SPIN

SOIL LEVEL

+

+

POWER

TOGETHER

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 : Water Valve Test

- Delay End Key : Door Lock/Unlock Test

- Spin : Drain Pump/Circulation Pump Test

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