What does Kenmore Dryer Door Switch Replacement - Signs & How-To mean?

If your Kenmore dryer won't start or stops mid-cycle, the door switch may have failed. Replacing it restores safe, normal operation.

How do I fix Kenmore Dryer Door Switch Replacement - Signs & How-To?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Kenmore Dryer Door Switch Replacement - Signs & How-To?

The most frequently replaced parts for Kenmore Dryer Door Switch Replacement - Signs & How-To are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Kenmore Dryer Door Switch Replacement - Signs & How-To a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Kenmore Dryer Door Switch Replacement - Signs & How-To

Kenmore Dryer Door Switch Replacement — What This Part Does

The door switch is a safety interlock that tells the dryer the door is securely closed. When you shut the door, the door striker presses the switch actuator, completing a circuit that allows the control to start and run the motor. Without a good door-closed signal, the dryer cannot operate. The switch fails when its internal contacts wear out, the plastic actuator tab breaks off, or the wiring connector loosens or corrodes. Because the door is opened and closed hundreds of times, mechanical wear on the actuator and electrical arcing inside the contacts are the most common failure modes.

Jump to Replacement Steps

Signs It Needs Replacing

Dryer will not start at all You press the start button and nothing happens because the control does not see a closed-door signal.
Dryer stops running when you bump the door The switch is intermittent and loses contact when the door moves slightly, cutting power to the motor.
Dryer runs with the door open The switch has failed closed, which is a safety hazard and means it must be replaced immediately.
Control panel lights up but drum won’t turn Power reaches the control board but the missing door-closed signal blocks the motor circuit.
Clicking noise at the door when you try to start You hear the switch trying to engage but it cannot complete the circuit due to bad contacts or a broken actuator.
Drum light stays on or never comes on Many Kenmore dryers use the door switch to control the drum light, so light behavior opposite to normal indicates switch failure.

How to Replace It

Unplug the dryer from the wall outlet or switch off the dedicated breaker at your panel.
Locate your dryer model and serial number on the plate inside the door opening or on the rear panel to confirm the correct replacement switch part number before you order.
Remove the lint screen and the two screws underneath it, then use a putty knife to release the spring clips along the front edge of the top panel and lift it up and back.
Find the door switch mounted to the front frame just inside the door opening, unplug the wire connector, and use a multimeter set to continuity to verify the switch is bad by pressing the actuator tab and checking for no continuity.
Remove the two mounting screws that hold the switch to the cabinet frame and pull the old switch out.
Install the new door switch in the same orientation, secure it with the two mounting screws, and plug the wire harness connector firmly onto the terminals.
Lower the top panel and press down along the front edge until the clips snap into place, replace the lint-screen screws, and reinstall the lint screen.
Restore power to the dryer and test by closing the door and starting a cycle to confirm the motor runs, then open the door mid-cycle to verify the motor stops immediately.
Check that the drum light (if equipped) turns on when the door opens and off when the door closes, which confirms correct switch operation.

The Part You Need

Part	Notes
Kenmore dryer door switch	Amazon \| Common part numbers are WP3406107 or 3406107 for many Kenmore and Whirlpool-family dryers, and WP3406105VP or 3406105 for some models. Match the part to your exact model number on the data plate inside the door or on the back panel.

If this part is failing you may also see one of these codes:

When to Call a Pro

If you are uncomfortable working inside the dryer cabinet or if you have tested the switch and found it has continuity but the dryer still will not start, call a tech. The problem may be in the control board, the door striker alignment, or the wiring harness rather than the switch itself. Also call a pro if the door does not latch properly or if you see burned or melted wiring at the switch connector, since those conditions point to additional mechanical or electrical faults that need diagnosis.