How can I test a dryer door switch?

You can test a dryer door switch for continuity using a multimeter. With the dryer unplugged, disconnect the wires. Set the multimeter to the continuity setting. When the door is closed (or switch pressed), the meter should show continuity. When open (or released), it should show no continuity. If it fails either test, the switch is likely faulty.

What causes a dryer door switch to fail?

Dryer door switches can fail due to regular wear and tear from repeated door openings and closings, which can cause the internal contacts to degrade or break. Physical impact, electrical surges, or accumulated lint and debris interfering with the mechanism can also contribute to its malfunction over time.

Can a dryer run with a bad door switch?

A dryer should not run with a bad door switch if the switch is designed to prevent operation when the door is open. If the switch fails in the 'closed' position, the dryer might operate even with the door ajar, posing a safety hazard. If it fails in the 'open' position, the dryer will not start at all.

Dryer Door Switch Replacement Guide | Appliance Aid

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BlueStars WP3406107 3406107 Dryer Door Switch For Whirlpool Maytag Kenmore

𝐈𝐌𝐏𝐎𝐑𝐓𝐀𝐍𝐓: Please check the model number carefully before ordering. If you're unsure about the compatibility, send us your dryer model number and we can help you confirm if it fits or not.
MODEL NUMBER: 3406107 Dryer Door Switch. Electrical Specs: 120-240V, 50-60Hz, 11A, 1/3HP
EASY TO INSTALL: Compatible with most top name brands (Whirlpool, Admiral, Amana, Crosley, Estate, Inglis, Kenmore, KitchenAid, Magic Chef, Maytag, Roper.) and replaces part numbers: AP6008561, 3405100, 3405101, 34061...
FIT MODELS: [Maytag] - MEDC400VW0, MGDX700XL1, MEDC300XW0, 3ZMED5705TW0, MEDC200XW0, 3ZMED5705TW1, 4GMEDC100YQ0, 4GMEDC300YW0, 4GMEDC100YQ2, 4GMEDX500YW2, 4KMED5900TW0, etc. [Whirlpool] - WED4800XQ0, GEQ9800PW1, 1CWED...
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What the 3406107 does

The dryer door switch is a safety mechanism that prevents the dryer from operating when the door is open. It signals the control board when the door is closed, allowing the cycle to start.

Symptoms when this part fails

Dryer does not start
Dryer stops mid-cycle unexpectedly
Drum light stays on when door is closed
Dryer runs with the door open

Compatibility

Fits the Whirlpool family. Specifically:

Any unit originally equipped with OEM part number(s): AP6008561, 3405100, 3405101, 3406100, 3406101, 3406109, W10569603, WP3406107, PS11741701.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: AP6008561, 3405100, 3405101, 3406100, 3406101, 3406109, W10569603, WP3406107, PS11741701

Tools you'll need

Phillips screwdriver
Flathead screwdriver
Nut driver
Pliers

Difficulty: Easy · Time: 20-30 minutes

How to install the 3406107, step by step

Unplug the dryer from its power source.
Open the dryer door and locate the door switch.
Remove any retaining screws or clips holding the switch in place.
Carefully disconnect the electrical wires from the old switch.
Connect the electrical wires to the terminals of the new door switch.
Secure the new switch into its mounting position.
Close the dryer door and plug the appliance back in.
Test the dryer to ensure it starts and stops correctly.

Related troubleshooting

If swapping this part doesn't fix the issue, check these next: