... plate, Least significant digit on SV window starts to bicker.Alteration:press< key to move the digit to left, press up key ... back, one time every three month.5,Put out the oil collect drawer,drop the fumes oil, and wash it, Then put back ... off.3,Use screw driver to unscrew the fixed screw on the pole plate.4,Pull out the filter and pole plate, do not ...