Samsung Washer Troubleshooting and Common Problems

Quick Answer

The most common Samsung washer issues involve a clogged drain pump filter, worn out suspension rods causing balance errors, or a faulty water inlet valve. Nine times out of ten, a machine that won't drain just needs the coin trap cleaned out at the bottom front of the unit.

Samsung washers are solid machines but they've got a few known weak spots that show up constantly. The drain filter gets ignored for years, suspension rods wear out around the 5-7 year mark, and that spider arm on front-loaders is basically a ticking clock. Ignore this stuff long enough and you're looking at a flooded laundry room or a drum that's wobbling loose. Most of it's fixable without calling a pro, honestly.

SamsungWasherSeverity: moderate

Time to Fix

20–120 min

Difficulty

beginner

Parts Cost

$0 (no parts needed)

Tools Needed

Phillips #2 screwdriver, Flathead screwdriver

Samsung Washer Troubleshooting and Common Problems

Look, Samsung builds a pretty decent washer but there are a handful of things that go wrong on almost every unit I touch. The drain filter's the first thing I check every single time, no matter what the symptom is. After that it's the suspension system and the inlet valves. These machines talk to you through their error codes and once you learn what they're saying, most repairs are pretty straightforward even for a first-timer.

Common Causes

The drain pump filter is packed with lint, coins, or a sock twisted into a rope that's blocking the impeller from spinning, which is the single most common reason a Samsung won't drain.
Suspension rods on top-loaders lose their damping ability around the 5-7 year mark and the tub starts bouncing during spin, triggering constant dc and Ub balance errors.
The water inlet valve solenoid coil burns out or the screens at the hose connection clog with mineral sediment, cutting water flow below what the machine needs to run.
On front-load models, the spider arm (that metal casting connecting the drum to the shaft) develops hairline cracks from years of vibration and eventually snaps completely.
The door latch assembly fails from repeated hard closing or detergent buildup on the catch, and the washer refuses to start because it thinks the door's still open.
The drive belt frays or snaps on older models, or the carbon brushes on direct-drive motors wear down to nothing, leaving a drum that hums but won't spin.

Symptoms You May Notice

The dc or Ub error flashes and the spin cycle stops dead, usually with a soaking wet load still sitting in the drum.
Cycle finishes but there's still a few inches of standing water in the bottom of the tub.
During spin it sounds like someone threw a pair of boots in there, loud rhythmic thumping and the whole machine walking across the floor.
Takes way too long to fill, or the 4E and 4C error shows up within the first minute or two of starting a cycle.
Water pooling under the machine or dripping out of the rubber door gasket on front-loaders after a cycle.
The Sd or Sud error on the display with a drum full of foam and the cycle just sitting there refusing to advance.

Can you reset a Samsung washer to clear the TROUBLESHOOTING code?

Unplug the Samsung washer for a full 5 minutes, not 30 seconds, 5 minutes to let the control board fully discharge. Plug it back in, close the door firmly, and press Power. For a soft reset mid-cycle, hold the Start/Pause button for about 5 seconds until the display changes. The machine drains and unlocks. Most error codes clear on their own once the actual underlying problem is fixed.

Tools Required for Diagnosis

Phillips #2 screwdriverFlathead screwdriver10mm and 12mm socket wrench setLong nose pliersDigital multimeterPutty knifeShop vacuumShallow pan or cookie sheet for draining the filterOld towels, a bunch of them

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

ComponentComponent Under Test

Expected Range1000–1200 ohms

ConditionIf Open (OL) or infinite, replace component.

Frequently Asked Questions

Why does my Samsung washer smell like mold?

Front-loaders trap moisture in the rubber door gasket and the detergent drawer and it gets genuinely nasty fast. Wipe the gasket dry after your last load of the day, leave the door cracked open so air can get in, and run the Self Clean cycle once a month with a little bleach. The smell's coming from mold living in the folds of that rubber seal. You can scrub it out with a rag and diluted bleach solution. But if the gasket's got black spots baked deep into the rubber, just replace it. It's $30-50 in parts and about 20 minutes of work.

What does the 5C or ND error mean?

These codes mean the washer can't drain. First thing you do every time is clean the drain filter at the bottom front, takes 5 minutes and fixes it probably 70% of the time. If the filter's clear, check that your drain hose isn't kinked behind the machine or pushed too far down into the standpipe, because that can create a siphon situation. If all that looks fine, the drain pump motor has probably failed. Test it with a multimeter for continuity. A new Samsung drain pump runs about $40-60 and it's roughly an hour of work to swap it.

My washer is shaking so hard it moves across the floor. Is it broken?

First thing: check if the shipping bolts are still in the back of the machine. Brand new Samsung front-loaders ship with four big yellow or red bolts across the back panel that have to come out before first use. If those are still in there, that's your whole problem. If it's not new, make sure all four leveling feet are touching the floor and the machine is level side-to-side. If it's a top-loader that's a few years old and just started doing this, the suspension rods are done. Pretty easy fix, about $30 in parts. I replaced three sets last week alone.

How do I fix a 'Sud' error on my Samsung display?

Too many suds. Honestly almost always because somebody used regular detergent instead of HE, or just used way too much. Samsung front-loaders need very little soap, like a tablespoon for a normal load. Let the machine sit for 15-20 minutes so the foam settles down, then run a Rinse and Spin cycle. It'll clear out on its own. Going forward, look for the HE symbol on your detergent bottle. And if you've got soft water, use even less than the bottle recommends.

Is it worth fixing a Samsung washer with a loud roaring sound?

That roaring or grinding during spin is almost always the rear drum bearing. And I'll be straight with you: on most Samsung front-loaders, replacing that bearing means basically disassembling the entire machine. The outer tub is usually welded or press-fit, so you often end up replacing the whole outer tub assembly. Parts run $100-200 and the labor is 2-3 hours even if you're good at this stuff. If the machine's over 7 years old, that repair cost gets real close to the price of a new entry-level washer. That's just the honest answer.

Why won't my Samsung washer start even though it has power?

Nine times out of ten it's the door latch. The machine won't do a single thing if it doesn't think the door is fully closed and locked. Try slamming the door a little harder and hitting Start again. Also check if child lock is activated, it usually shows as a small lock icon on the display, hold the right button combo for 3-4 seconds to disable it. Make sure both water supply valves behind the machine are fully open too. If none of that works, you're probably looking at a failed door lock assembly or, less commonly, a control board issue.

Models Known to Experience TROUBLESHOOTING Errors

This repair applies to most Samsung washers with this error code. Common model numbers include:

WF45R6100AW, WA50R5400AV, WF42H5000AW, WA45T3400AW, WV60M9900AV, WA54R7200AW

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026