Samsung WM3670HVA Won't Drain – What Part Fixes This Problem?
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Understanding the Problem
If your Samsung WM3670HVA is filling and spinning but leaves water in the drum or shows a drain-related error, the issue is usually with the drainage system — either a blockage or a failed drain pump. Front-load washers rely on the drain filter/coin trap, a flexible drain hose, and an electric drain pump to remove water. Debris (coins, lint, fabric, small clothing items) often collects in the filter or impeller and prevents proper drainage. Less commonly, the pump motor itself can fail electrically or mechanically (seized impeller), wiring/connectors can be damaged, or the control board/pressure system can be at fault. You can often narrow the problem down by listening for the pump during the drain cycle (a humming or grinding noise) and by inspecting the pump filter/coin trap for obstructions before replacing parts.
Common Symptoms
Water remains in drum after cycle, drain-related error lights/codes (model-dependent), unusual humming or grinding from the base during drain, slow draining or intermittent draining.
Common Causes
- Clogged drain filter/coin trap or pump impeller (coins, lint, small garments)
- Blocked, kinked, or improperly routed drain hose / standpipe
- Failed drain pump motor or damaged pump wiring/connector
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Start by running a Drain/Spin cycle and listen: no sound usually means pump or wiring fault; a humming sound with no water points to a jammed impeller. Remove the front lower access / drain filter and manually clear debris — if the washer then drains, the pump is likely fine.
Frequently Asked Questions
How do I confirm the drain pump is bad?
First, remove and inspect the drain filter/coin trap for debris and clear it. Run a Drain/Spin and listen: a working pump will run audibly and you’ll feel vibration; a silent pump could indicate an electrical failure. If the pump hums but doesn't move water, the impeller may be jammed. For an electrical check, disconnect power, unplug the pump connector and measure continuity across the pump motor terminals with a multimeter (consult a service manual for expected resistance). If you’re unsure, remove the pump and test by applying power only if you are experienced and follow safety procedures. Always verify part numbers for your serial number before replacing.
Can I replace the drain pump myself and how much does it cost?
Yes — a competent DIYer can replace the pump: unplug the washer, drain remaining water via the drain filter hose, remove the front lower access panel, disconnect the pump electrical connector and hoses, unbolt the pump and swap in the new unit. Typical part cost for a Samsung drain pump ranges from $30–$120 depending on supplier; labor if hired runs $100–$250. If you are uncomfortable working with electrical components or the machine is under warranty, contact a certified technician or Samsung service.
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