Samsung WA48H7400A Serie Informations Techniques page 13

TROUBLE SHOOTING
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
TROUBLE DIAGNOSIS
Will Not Start
• Plug the unit into the wall outlet. Check for proper voltage.
• Check fuse or reset circuit breaker.
• Push any key to turn on the washer and press the Start/Pause key to run the washer.
• Close door and push the Start/Pause key to run the washer.
• Check if washer is in a pause, soak or suds process. Wait briefly and it may start. (If the washer is in suds
period, Suds will light up instead of remaining time.)
• Check for restricted drain system. (If there is electrical problem in drain system, "nd" error will occur after 30
minutes.)
• Check Water Supply.
• Check the line or water valve screen filter.
• Check if PCB connectors are assembled properly.
• Check if CN2 terminals on PCB are in good condition. (Refer to PCB Connector Check.)
• Replace PCB.
Leaking
• Make sure inlet hose connections are not leaking. Check for rubber gasket damage due to over tightening.
• Check the standpipe for leaking. Wrap a dry rag around the standpipe opening. If the rag becomes wet, the
leak is the fault of home plumbing.
• Be sure the standpipe is capable of accepting the flow of water from the washer.
• Make sure end of drain hose is correctly inserted and secured to drain standpipe.
• Check internal hose connections (fill, drain systems, dispenser hoses & clamps).
• Check rubber boot. Remove, reposition and reinstall, if necessary.
• Check for possible kinked dispenser to outer tub hose. Hot water pressurization may force door open.
Will Not Spin
• Make sure to close the door completely.
• Check for water left inside the washer. If so, go to "Will Not Drain".
• Perform Quick Test Mode or Quick Spin Test. Does the washer spin? (Before the test, empty the unit inside.)
If it doesn't tumble after the above, change PCB. When the problem persists, change the motor.
• Perform Quick Test Mode or Quick Spin Test. Does the washer spin? If it does, Check Possible unbalanced
load scenario in normal mode.
• Check for loose connections at PCB, Water Level Sensor, Motor, Hall Sensor Wire Harness. (CN9,CN1,CN8)
(Refer to the Component Testing Procedure.)
• Check motor windings resistance. (CN8 Pin1&3 = 11.6 ohms (at ±7% 20°C/68°F),
Pin1&2 = 11.6ohms (at ±7% 20°C),
Pin2&3 = 11.6 ohms (at ±7% 20°C))
WA7000HA WASH_WA48H_TECH MANUAL_DC68-03132G-01_EN.indd 13
WARNING
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2014-1-6 15:56:29