Troubleshooting With Error Code - LG WT7600HVA Service Manual

4-7. TROUBLESHOOTING WITH ERROR CODE

Trouble
IE 1. Verify the valve is open and water is on.
2. Check the filter on inlet valve whether
3. Check the connector of valve and RD6 on PCBA.
4. Check the testmode (Testmode 3)
5. Check the valve resistance. (0.8-1.2 kΩ)
OE 1. Check the test mode (Testmode 6)
2. Check the connector of PCBA or pump or
3. Check the connection from PCB to pump by tester
4. Check the pump SPEC (resistance of the coil is
dE 1. Connect other doorlock switch and check the lid
dL 1. Check the doorlock switch trying locking
2. Check the balance of the lid.
FE 1. Check the Water level
2. Check the valve
tE 1. Check the connector of PCBA (YL2) or thermistor
2. Check the cutted connection from PCB to
PE 1. Check the Presure Sensor (21~23 Ω ±10%) and
2. Check the Connector (BL6)
LE 1. Check the connector of PCBA (YL3, BL6) or
2. Check the magnet for Rotor
3. Check the Rotor Resistance (YL3) 5 to 15 Ω
LE1 1. Check Foreign objects, such as coins, pins, clips,
No Power 1. Check the fuse for noise filter and PCBA by tester
2. Check the IPM
Check
clogged with foreign material or not.
connection connector
10-20 Ω) and input voltage on working (120V±5%)
sensing by magnet
(1) Power on and run
(2) Press the SPIN SPEED & DELAY WASH
or connection connector
thermister by tester
connection
motor connector or connection connector
(U-V, V-W, W-V :U=1, V=2, W=3)
etc., being caught between the wash plate and the
inner basket.
-. Check the Short between top switch
Heatsink and YL3 pin by Tester
1. Turn the tap on.
2. Clean or replace the filter
3. Reconnect or repair the connector
4. Replace the PCBA
5. Replace the inlet valve assembly.
1. Replace the PCBA
2. Reconnect or repair the connector
3. Replace harness
4. Replace pump
1. Replace the doorlock switch or PCBA
1. If trying, replace the doorlock switch.
Or not trying replace the PCBA
2. Replace the door or set the balance
1. If segment is displayed under 10,
replace the PCBA
2. Replace the valve
1. Reconnect or repair the connector
2. Replace harness
1. Reconnect or repair the connector
1. Reconnect or repair the connector
2. Replace the rotor.
3. Replace the stator.
1. Turn off the washer and then press the
Power button.
2. Press the spin speed button without
selecting a cycle to drain and spin the load.
3. When the spin is complete, remove the
clothes and then find and remove any
objects caught in the wash plate.
1. If the beep sounds, the fuse is OK.
If no beep, change the noise filter, including
the fuse.
2. If beep sound, replace the PCBA.
33
Counterplan