Put through power supply, press the power switch, the indicator light display is normal, but when the washing motor running only a single direction. dLWservice manual download site
dLWservice manual download site
Detection and judgment: because the display is normal, and the function of electric rotating, indicating motor and microcomputer chip is normal, can control motor and reversing breakdown caused by short circuit of thyristor one of them. dLWservice manual download site
dLWservice manual download site
Open the control panel of the washing machine, F printed circuit board, with a knife will be moistureproof latex, make the testing point the location of the show, examination showed bidirectional thyristor TR1 breakdown between T1 and T2 electrode short circuit. dLWservice manual download site
dLWservice manual download site
dLWservice manual download site
Processing method: use a same bidirectional thyristor after replacement, troubleshooting.dLWservice manual download site
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