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if she moves the timer a click or two does it start ? or is it different cycles on the timer that don't work ?
Yes its not to bad to replace, there are screws along the top of the control panel you unplug the machine and take those out then tip the control panel forward, there are screws holding the timer. as far as the knob goes the very front of the knob pops off and theres a little C clip you slide off to remove the knob, the timer just plugs it so its pretty easy.