Washer Won't Drain: Start With the Filter — Eastern NC Tech's Complete Guide (2026)

Step 1: The Drain Pump Filter — Start Here

If you own a front-load washer, there is a drain pump filter at the bottom front of the machine that catches lint, coins, and small garments before they reach the pump. It fills up over time.

How to access it: Look for a small access panel at the bottom front. Place a pan and towels underneath — there will be water. Drain it through the small plug first, then unscrew the larger filter cap counterclockwise.

Step 2: Check the Drain Hose for Kinks

Pull the washer from the wall and inspect the full hose run for kinks, crushing, or lint clogs at the standpipe end. A kinked hose is common after a washer has been moved.

Step 3: Standpipe Height and Siphon Effect

The drain hose must be installed 39-96 inches above the floor with an air gap — not sealed into the standpipe. Incorrect installation causes siphoning that mimics a pump failure.

Step 4: Test the Drain Pump

If the filter is clean and hose is fine, the drain pump has likely failed. Signs: humming with no drainage, or silence during the drain cycle. Accessing the pump typically requires partial disassembly — this is where most people call a technician.

Step 5: Top-Load Washers — Lid Switch First

Top-load washers have a lid switch that must engage before spinning or draining. When it fails, the washer washes normally but won't transition to drain or spin. Whirlpool Cabrio and Maytag Bravos models can also fail at the shifter actuator — see our washer repair page.

LG Washer OE Error: Complete Diagnosis Flow

OE means the LG washer couldn't drain in the allotted time. Clean the filter first (fixes 70% of cases), check the hose, then test the pump if the problem persists.

Samsung 5C / SC Error: Complete Diagnosis

Samsung's 5C (or SC) is their drain error code. Same diagnostic flow as LG — clean the filter, check for debris trapped in the pump housing, check the hose.

Whirlpool F21 Error: Complete Diagnosis

F21 on Whirlpool Duet means drain time exceeded the maximum. Check the pump filter (behind the lower front panel) and the coin trap at the pump inlet.