Samsung WA48H7400 - Troubleshoot 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

Summary

SERVICE TEST MODE - POWER ON

Quick Spin Test Mode

Enters spin test mode to check motor RPM and hold speed.

QUICK TEST MODE - POWER OFF

Component Testing Procedures

Tests water valve, door lock/unlock, and drain/circulation pumps.

Troubleshooting Error Codes (Part 1)

Water Level Sensor Errors (1 E)

Troubleshooting for water level sensor faults and connections.

Washing Motor & Hall Sensor Errors (3 E)

Diagnosing washing motor and hall sensor faults and connections.

Troubleshooting Error Codes (Part 2)

Water Supply Errors (4 E)

Diagnosing water supply valve, freezing, and PCB issues.

Drain Errors (5 E)

Troubleshooting drain pump, freezing, and connection faults.

Troubleshooting Error Codes (Part 3)

Switch & Relay Errors (bE2)

Door Lock Errors (dE1, dE)

Water Leakage Errors (LE)

Identifying and resolving water leakage issues.

Troubleshooting Error Codes (Part 4)

Overflow Errors (OE)

Temperature Sensor Errors (tE)

PCB Component Diagnostic Checks

Drain Motor & Pump Check

Water Valves Check

Door Lock Check

Samsung WA48H7400 Specifications

General

Capacity	4.8 cu. ft.
Energy Star Certified	Yes
Color	White
Wash Cycles	12
Spin Speed	1300 RPM
Steam Function	Yes
Vibration Reduction Technology+	Yes
AddWash Door	No
Steam Wash	Yes
Self Clean+	Yes
Digital Inverter Motor	Yes
Type	Top Load