Samsung WF405ATPASU/A2-00 washer Parts

For the Samsung WF405ATPASU washer, we typically force a drain by running a drain-and-spin action (Spin Only) from the control panel; if the washer will not respond, we manually drain through the front drain tube and clean the debris filter as described in the WF405ATPASU manual.

Fast ways to drain (try these first)

• Press Power to turn the washer on.
• Use Spin Only: press and hold Spin for about 2 seconds, choose a spin level, then press Start/Pause.
• If the washer is stuck, press Power to cancel, wait 10 seconds, then try Spin Only again.
• If the door will not unlock, wait for the Door Lock light to go out; do not force the door.

Emergency manual drain (when the tub is full)

This model has a debris filter and drain tube behind the lower front filter cover.

• Unplug the washer.
• Place towels and a shallow pan under the filter area.
• Open the filter cover, pull out the small drain tube, and drain water into the pan.
• After draining, remove and clean the debris filter, then reinstall it snugly.

A clogged debris filter is one of the most common reasons a front-load Samsung washer will not drain.

What to check if it still will not drain

• Drain hose: not kinked, crushed, or pushed too far into the standpipe
• Standpipe height: typically at least 18 inches to help prevent siphoning
• Load size: reduce oversized loads that can trap water and prevent proper pumping
• Error codes: note any code on the display and troubleshoot it

For code-specific help, use our Samsung front load washer nd error code guide.

Why it matters

Forcing a drain the right way helps prevent water spills, protects the door lock, and avoids pump damage from running the washer with a blocked filter or restricted drain hose.

Situation	Best method	What it tells you
Washer responds to buttons	Spin Only	Control is working; drain system may be OK
Tub is full and door locked	Emergency drain tube	Safest way to remove water without flooding
Drains slowly or stops	Clean debris filter	Likely blockage (coins, lint, small items)

Last updated: January 2026

Across Samsung washers (including the Samsung WF405ATPASU), the most common issues we see are excessive vibration or shaking during spin and drain problems that leave clothes too wet. On this model, the owner’s guide also emphasizes proper leveling, correct loading, and routine debris-filter cleaning to prevent these symptoms (see the WF405ATPASU user manual).

Most common issues and what usually causes them

• Shaking or walking during spin: unbalanced loads, washer not level, or worn suspension/shock components.
• Won’t drain or spins poorly: clogged debris filter, blocked drain hose, or a failing drain pump.
• Door won’t lock or won’t open: door lock mechanism issue or water level/temperature preventing unlock.
• No fill or slow fill: closed faucets, kinked hoses, low water pressure, or inlet valve problems.
• Odors or residue: detergent buildup, dirty door seal/bellow, or skipped tub-cleaning cycles.

Quick checks we recommend first (WF405ATPASU)

1. Confirm the washer is level on all four corners; recheck after several loads.
2. Load correctly: avoid overfilling (keep the drum about 3/4 full) and mix items to prevent imbalance.
3. Clean the debris filter and check the drain hose for kinks or restrictions.
4. Run a tub-clean cycle (Samsung calls it Pure Cycle) on a regular schedule.
5. If the washer was recently installed or moved, run Calibration Mode so load sensing is accurate.

Symptom-to-likely-cause guide

Symptom	Most likely cause	Best first action
Loud shaking on spin	Unbalanced load or leveling	Rebalance load; level legs
Clothes soaking wet	Drain restriction or pump issue	Clean filter; inspect hose
“nF” (no fill) type behavior	Water supply issue	Open faucets; check hoses
Musty smell	Buildup at door seal/tub	Clean seal; run Pure Cycle

Helpful DIY resources

• For drain-related failures, we use the steps in Samsung front load washer nd error code to guide filter and drain-path checks.
• For general diagnostics, Samsung front load washer error codes helps match symptoms to what the control is detecting.

Why it matters

Vibration and drain problems can quickly lead to bigger issues: repeated out-of-balance spinning stresses the suspension and cabinet, and poor draining can cause odors, residue, and repeated cycle interruptions.

Last updated: January 2026

On the Samsung WF405ATPASU washer, you typically clear an error code by canceling the cycle and power-cycling the washer (turn it off, unplug for about 5 minutes, then restore power). If the code returns, the washer is detecting an active problem, so clearing the display alone will not fix it (see the WF405ATPASU manual).

Quick reset steps (WF405ATPASU)

• Press Power to turn the washer off.
• Unplug the washer (or switch off the breaker) for 5 minutes.
• Restore power.
• Turn the washer on.
• Run Rinse+Spin with the tub empty to confirm the code is gone.

If Child Lock is on, clear that first

This model uses a button-hold sequence for Child Lock.

• Press and hold Soil Level and Signal together for about 3 seconds to pause Child Lock.
• To fully deactivate Child Lock, press and hold Soil Level and Signal for about 6 seconds.
• After Child Lock is off, power-cycle again if the code is still displayed.

What the reset can and cannot do

Action	What it does	What it does not do
Power cycle (unplug 5 minutes)	Clears a temporary control glitch	Fix a fill, drain, door lock, or motor problem
Cancel cycle (Power off)	Stops the current program	Remove the cause of the error
Smart Care scan	Helps identify the error and steps	Replace failed parts automatically

Common reasons the code comes right back

If the WF405ATPASU senses the same condition again, it will re-display the code.

• Water supply issue (hot/cold faucets off, kinked inlet hoses, low water pressure)
• Drain problem (clogged drain hose, restricted standpipe, debris filter blockage)
• Door not locking (item caught in the door, latch not engaging)
• Oversudsing (too much HE detergent, wrong detergent type)
• Unbalanced load during spin (single bulky item, load not distributed)

Why it matters

Error codes are the washer’s way of preventing leaks, overheating, or damage to the drive system. Clearing the code is useful for a one-time glitch, but repeated codes mean you will get the best results by troubleshooting the underlying fill, drain, door, or load condition.

Related help: Samsung front load washer error codes.

Last updated: January 2026