WM2016CW Drain Pump — What Part Fixes Washer Not Draining?
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Understanding the Problem
The drain pump in a WM2016CW washer evacuates water from the tub during drain/spin cycles. When the pump fails or is blocked, the washer won't drain, may show error codes, hum without pumping, or leak. Follow these numbered steps to diagnose and fix the problem. 1) Verify the symptom — Run a drain/spin cycle and listen. If you hear humming but no water is exiting, or you see standing water after the cycle, the pump or its inlet/outlet is likely the issue. 2) Check for simple blockages — Unplug the washer, open the pump access (usually at the front lower panel) or remove the small access door. Place towels and a shallow pan to catch water. Slowly open the pump filter/coin trap (if present) or loosen the drain hose to remove trapped items (coins, socks, lint). Clear any debris and retry the drain cycle. 3) Inspect hoses and clamps — With the washer unplugged, inspect the drain hose and internal pump hoses for kinks, holes or collapsed sections. Tighten or replace clamps and hoses as needed. 4) Test pump operation — With the lid closed and washer powered, run a drain cycle and observe: does the pump motor run (noise/vibration)? If it hums but doesn't move water, or makes grinding noises, the impeller may be jammed or the pump failed. For an electrical check, unplug the washer, access the pump wiring, and test the pump motor for continuity with a multimeter (expect continuity; an open circuit suggests a failed motor). 5) Remove and bench-test pump — If still unsure, remove the pump assembly: after unplugging, drain residual water, disconnect inlet/outlet hoses (note orientation), remove mounting screws/clips and wiring connectors. On the bench, you can carefully apply power per the service manual to confirm it spins (or test continuity). 6) Replace the pump — Install the new pump in the reverse order: attach hoses with clamps, secure mountings, reconnect wiring, and reinstall the access panel. Restore power and run a test drain/spin cycle while watching for leaks. 7) Final checks — Ensure no unusual noises, verify complete drainage, and double-check hose/clamp tightness and electrical connections. Safety note: always unplug the washer before opening panels or disconnecting hoses. If you are not comfortable working around water and mains electricity, hire a qualified technician. Replace parts with the correct model-specific pump and confirm part numbers before ordering.
Common Symptoms
Washer won’t drain or spins with standing water, humming or grinding noises during drain, water leaking from the lower front, washer displays drain-related error codes.
Common Causes
- Clogged pump impeller or coin trap (debris, coins, small garments)
- Failed pump motor (electrical failure or worn bearings)
- Damaged or kinked drain hose, loose clamps, or cracked pump housing
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 ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
To quickly confirm the pump: remove the pump access, spin the impeller by hand — it should turn freely and snap back; if it’s stiff, broken, or filled with debris, replace the pump. Also test for motor continuity with a multimeter (open circuit = bad pump).
Frequently Asked Questions
How long does it take to replace the drain pump on a WM2016CW?
If you have the correct replacement pump and basic tools (screwdrivers, pliers, towel/bucket), removal and installation typically take 30–60 minutes for a DIYer. Allow extra time to locate water, let residual water drain, and test after installation.
Can I run the washer if the pump is bad while I wait for parts?
No — running a washer with a failed or leaking pump can leave clothes soaked, cause leaks, or damage the machine. There is no safe long-term workaround; avoid using the washer until the pump is repaired or replaced. You can manually drain water from the tub into a bucket as a temporary measure between cycles, but this is not a substitute for pump repair.
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