If your washing machine is having any of these symptoms, then replacing the timer could solve your appliance problem 1) timer will not advance partselect part number: ps2017900. Timer for a whirlpool washer. Whirlpool estate washer timer 3347714 3351744 ap2911959, 1172, 3357023, 661574 $3999 free shipping make offer - whirlpool estate washer timer 3347714 3351744 ap2911959, 1172, 3357023, 661574 whirlpool dryer timer 3406720a or 3406720 a wp3406720 ap6008570, 3406720 $2750. timer for a whirlpool washer Washer timer & pressure switch repair - youtube If the washing machine fills with water and the timer does not advance, it may have a bad water level switch the water level switch should be tested for continuity timer knob the timer knob turns as the washer moves through ...