Samsung Washer Troubleshooting and Repair Guide

Quick Answer

Samsung washers usually act up due to unbalanced loads (dc error), drainage blockages in the coin trap, or faulty water valves. Nine times out of ten, cleaning the filter at the bottom front of the machine or leveling the feet solves the problem without needing parts.

Samsung washers look premium but they've got some real weak spots. The drain pump filter gets clogged constantly and most homeowners don't even know it exists. Ignore it long enough and the pump burns out, turning a $0 fix into a $150 part. Front loaders especially have that spider arm issue that shows up around year 5-7. Most service calls I go on, though, end up being basic maintenance that takes 20 minutes tops.

SamsungWasherSeverity: moderate

Time to Fix

15–120 min

Difficulty

beginner

Parts Cost

$0 (no parts needed)

Tools Needed

Phillips #2 screwdriver, Needle-nose pliers

Samsung Washer Troubleshooting and Repair Guide

Start with the easy stuff before you call anyone. Seriously. I've shown up to houses where the whole problem was a sock jammed in the filter, and the customer had already booked a $150 diagnostic call. Samsung washers are smart machines but they need regular maintenance love. The coin trap filter, the leveling feet, and the door seal are the three things most people ignore until something breaks.

Common Causes

Coin trap filter packed with lint, coins, and debris that's blocking the pump impeller from moving water out
All four suspension rods worn flat and lost their dampening ability, causing the tub to slam against the cabinet during high-speed spin
Spider arm casting cracked at one or more of the three legs, usually shows up around year 5-7 on machines that see heavy daily use
Water inlet valve screens clogged with sediment, or the solenoid coil burned out, slowing the fill to a trickle or stopping it altogether
Door latch tab broken or worn enough that the machine won't register a closed door and refuses to start the cycle
Regular detergent used instead of HE, or way too much HE detergent, generating foam that triggers the SUD safety cutoff

Symptoms You May Notice

Machine stops mid-cycle and shows 5C or nd on the display, water just sitting in the drum not going anywhere
Loud rhythmic BANG-BANG-BANG during the final spin, sometimes bad enough to walk the machine across the floor
Puddle of water under the front of the machine after every cycle, usually from a worn door seal or a filter that wasn't screwed back in tight
Cycle runs 90+ minutes on a setting that should take 45, machine keeps pausing and adding water trying to balance the load
Motor hums like it's trying to go but the drum just sits there, not spinning in either direction

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

Press and hold the Power button until the machine shuts off completely. Unplug from the wall and actually wait 5 minutes, not just 30 seconds. Plug back in, then press and hold Start/Pause for about 5 seconds. The display should reset to normal standby mode. If the same error code pops back up immediately, the underlying problem is still there and a reset alone won't fix it.

Tools Required for Diagnosis

Phillips #2 screwdriverNeedle-nose pliersShallow tray or baking pan (for filter drainage)Standard 2-foot levelMultimeterFlashlight or headlampOld towels or rags

Diagnostic Checklist

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

ComponentComponent Under Test

Expected Range200–500 ohms

ConditionIf Open (OL) or infinite, replace component.

Frequently Asked Questions

Why does my Samsung washer keep showing the 'dc' error?

The dc code means the machine detected an unbalanced load. If it happens on every single cycle, even with a small load, your suspension rods are probably shot. There are four of them, one in each corner, and they're basically shock absorbers for the tub. After 5-7 years they lose their dampening ability and the tub can't stay centered at high RPM. Replace all four at once, not just one. They run about $15-25 each and it's pretty DIY-friendly if you're OK tilting the machine back and reaching up inside from underneath.

How often should I clean the Samsung debris filter?

Every two months at minimum. If you've got dogs shedding or kids leaving stuff in pockets, bump that to once a month. I had a customer who never cleaned hers in three years. The pump motor burned out from the strain of pushing water past a completely packed filter. That was a $120 pump motor versus a free two-minute cleaning job. Seriously, just set a calendar reminder on your phone. The whole thing takes less time than making a cup of coffee.

What does the 'SUD' error mean?

Too many suds. Samsung's pressure sensor detects foam buildup and pauses the cycle so it doesn't overflow or wreck the pump. Usually it's because someone used regular detergent instead of HE, or they used HE but way too much of it. These machines run on very little water, so even a normal-looking detergent cap is overkill. Two tablespoons is genuinely all you need. Run an empty hot cycle to flush the suds out and switch to HE detergent going forward. If SUD keeps showing up even with tiny amounts of HE soap, your pressure sensor might be gunked up or starting to fail.

My washer smells like mold, how do I fix it?

Front loaders are notorious for this. The rubber door gasket has folds that trap water, lint, and detergent residue, which is basically a mold hotel. After every wash, peel back those gasket folds and wipe them dry. Leave the door cracked open whenever the machine isn't running. Run the Self Clean cycle with a washer tablet like Affresh once a month. If the smell is already bad, mix a quarter cup of baking soda and a quarter cup of white vinegar, dump it in the drum, and run the hottest cycle you've got. Takes a few rounds to fully clear out but it does work.

Why is my Samsung washer taking hours to finish a cycle?

It's stuck in a loop trying to balance the load before the final spin. When the machine detects wobble, it stops, adds more water trying to redistribute the clothes, and then tries spinning again. This can repeat 10-15 times if it can't find balance. First check that all four feet are touching the floor solidly, grab a level, and make sure the lock nuts on the back feet are actually tightened down. Also check the suspension rods for bounce. And mixing heavy towels with lightweight stuff in the same load is asking for this problem because the towels absorb all the water and clump on one side.

Models Known to Experience TROUBLESHOOTING Errors

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

WF45T6000AW, WA50R5400AV, WF42H5200AW, WA45T3400AW, WF45R6100AC, WV60M9900AV, WF56H9100AG, WA52M8650AV

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026