Dryer Door Switch (3-Wire) (Whirlpool OEM)

Description

Genuine Whirlpool OEM Dryer Door Switch (3-Wire) – Part WP3406107

Part Number: WP3406107

Replaces: AP6008561, 3406107, 3405100, 3405101, 3406100, 3406101, 3406109, WP3406107VP, PS11741701

Always verify compatibility using your appliance model number before ordering.

Whirlpool Dryer Door Safety Switch (Part # WP3406107)

Maintain strict operating safety and reliable electrical control in your laundry room with this Genuine OEM Whirlpool Dryer Door Safety Switch. This factory-certified replacement electrical assembly (Part # WP3406107, which directly replaces older part numbers like 3406107, 3405100, 3405101, 3406105, AH346744, and EA346744) functions as the primary safety gatekeeper for your appliance’s motorized drive loop.

Mounted directly into the front bulkhead cabinet cutout behind the door frame, this spring-loaded micro-switch features an elongated plastic actuator lever. When you firmly close the dryer door, the door strike depresses this lever, mechanically forcing the internal copper electrical contacts inside the switch to snap closed. This completes the high-voltage circuit to the main drive motor, allowing the machine to start spinning and heating.

If this switch fails mechanically or electrically shorts out, it can leave its contacts permanently stuck in the open or closed position. This causes severe failure symptoms, including a dryer that completely refuses to start when you push the start button (even though the drum light turns on), or a dryer that dangerously keeps tumbling and heating even when you pull the door wide open.

Quick Info:

• Compatibility: Precision-engineered for Whirlpool, Kenmore (110-Series), Maytag, Amana, KitchenAid, Jenn-Air, Magic Chef, Admiral, Roper, Estate, and Norge clothes dryers.

• Wiring Configuration: Features a 3-wire terminal harness lead block (typically configured to handle the main motor circuit, the neutral line, and a secondary circuit loop that turns the internal drum light bulb on and off when the door moves).

• Fixes Common Issues: Resolves a dryer that won’t start or turn on, a dryer that won’t stop spinning when the door is opened, a dead internal drum light, or an intermittent shut-off issue during high-vibration spin cycles.

• Difficulty: Novice to Intermediate. A highly accessible DIY repair typically requires a putty knife and a nut driver to lift the top panel shroud.

Pro Tip: If your dryer suddenly refuses to spin but you hear a faint “click” from your timer dial or control board, you can verify if this safety switch has failed using a digital multimeter set to Ohms ($\Omega$) / Continuity mode. First, isolate power and pull the switch out from the frame. Attach your meter’s test leads to the primary motor terminals on the wire plug block. With the switch plunger extended (simulating an open door), the meter should show “OL” (Open Loop). When you manually press the plastic actuator lever flat with your thumb, the meter should instantly beep or read 0 Ohms. If the meter stays on “OL” while the lever is held down, the internal copper contact leaves have burned out, and the switch must be replaced.

Installation & Safety Steps:

1. Isolate Power: You must completely unplug the dryer’s heavy 240V power cord or shut off the main dual-pole house circuit breaker before handling the internal wire harness leads to prevent high-voltage arcing.

2. Pop the Top Panel: Slide a rigid putty knife horizontally into the front top seam between the main cabinet face and the top lid to release the hidden spring retainer clips. Lift and swing the main top panel upward and back out of the way.

3. Unplug the Wiring Loom: Locate the 3-wire plastic plug block leading to the door switch assembly near the upper front right corner of the interior frame. Press the locking retention tab and pull the harness plugs apart.

4. Unbolt and Swap: Open the dryer door. Unthread the two Phillips-head mounting screws securing the switch casing to the inner door frame rim. Pull the failed switch out from the cabinet interior, position the new genuine factory replacement switch into the frame pocket, and bolt it down tightly with your hand screwdriver (avoid power drills to prevent stripping the thin metal frame threads).

5. Reclip and Test: Reconnect the plastic wire harness plug firmly until it clicks, swing the main top lid back down, and press it firmly into its front spring retainers until they lock.

Are you replacing this safety switch today because your dryer won’t turn on when you press the start button, or is your machine failing to shut off safely when you open the door?