If your dryer controls are not working, the usual culprits are simple mechanical failures first: cracked or stripped selector, timer, or control knobs that slip on the switch stems and fail to engage the controls. Next check the power cord and its terminals for breaks or burn marks if the entire display or timer is dead. If the start button is the only thing misbehaving and the door switch tests good, a blown thermal fuse is a common cause; you can verify it with a multimeter for continuity and replace it if it reads open. For many models the same knob part is sold under several names, so if a knob is slipping or the dryer knob not working, replace it to restore function. If you need the exact replacement, enter your model number on RepairClinic.com to find the right part for your specific dryer and get step-by-step guidance for swapping it out.
01 - Kenmore Dryer Selector Knob
A dryer selector knob needs to be able to engage and rotate the selector switch stem for that control to work. If the knob is cracked or stripped out and just slips on the stem a new knob will need to be installed to properly engage the switch.
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The dryer's timer knob needs to be able to engage and rotate the timer stem for the control to work. If the knob is cracked or stripped out and just slips on the stem a new knob will need to be installed to properly engage the control.
A dryer control knob needs to be able to engage and rotate the switch stem for that control to work. If the knob is cracked or stripped out and just slips on the stem a new knob will need to be installed to properly engage the switch.
If the whole dryer display or timer is not working, the dryer's power cord could the source of the problem. Inspect the cord for any breaks or burn marks near the terminals. If the terminals appear blackened or wires are exposed through the cord's insulation, you should replace the power cord with a new one.
A dryer control knob needs to be able to engage and rotate the switch stem for that control to work. If the knob is cracked or stripped out and just slips on the stem a new knob will need to be installed to properly engage the switch.
If just the start button is malfunctioning and you've confirmed the door switch is working properly, then it's possible the thermal fuse has blown. You can use a multimeter to test the fuse for electrical continuity. If the thermal fuse has no continuity, you'll know it has blown and will need to be replaced.