Component Test Procedures - LG WM2801H Series Training Manual

TRAINING MANUAL WM2801H*A

COMPONENT TEST PROCEDURES

Several components of the machine can be tested before removing or exchanging them.
Some test procedures can be completed without major disassembly other than to
disconnect the component from its circuit; others may be tested from their connector on
the control panel. Often, the only equipment required is a multimeter.
NOISE FILTER
The noise filter is designed to keep DC noise from the motor from filtering into the house
wiring and affecting other appliances, particularly radios and televisions.
Using an ohmmeter, check from the white connector terminal 1 (white wire) to the red
connector terminal 3 (blue wire.) The resistance should be 0 Ω.
Then check from the white connector terminal 3 (black wire) to the red connector
terminal 1 (brown wire.) The resistance should be 0 Ω.
If these tests pass, reconnect the white connector but not the red connector.
Plug in the machine in. Read the voltage across terminals 1 and 3 of the red (output)
connector. It should be approximately 120 V , the same as at the outlet.
AC
WM2801H*A Page 69 Washing Machine