LG WM3570HVA Drain Hose — What Fixes Drain and Leak Problems
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
What the drain hose does: The drain hose carries wastewater from the washer's drain pump to your household drain or standpipe. Problems with the drain hose commonly cause leaks, slow or no draining, and error codes (OE). Step-by-step diagnostic and repair steps: 1) Safety first: Unplug the washer and turn off the water supply. Have towels, a shallow pan or bucket, and pliers handy. 2) Visual inspection: Pull the washer away from the wall and inspect the entire hose length for cracks, splits, pinholes, kinks, crushed sections, or loose clamps. Check both the connection at the washer pump outlet and the connection at the standpipe/drain. If you see water pooling on the floor, follow the hose to find the leak location. 3) Check routing and height: Ensure the hose is routed without sharp bends or kinks and that it is secured to the standpipe or drain using the factory hook or a secure fastening. Typical recommended height range for LG front-load machines is roughly 30–96 inches (76–244 cm) above the floor; consult your manual for exact numbers. A hose too low can siphon; too high can strain the pump. 4) Test for clogs: Place a shallow pan under the pump connection, then disconnect the drain hose from the standpipe (leave the washer plugged in for a drain test? No — instead run a short drain/spin cycle after you reconnect or manually drain into a bucket). To check for blockage without running cycles: disconnect the hose from the pump outlet (with power off) and look inside for debris, lint, or foreign objects. Blow through or run a garden hose to check flow. 5) Clean the hose: If you find sediment or visible blockage, use a long flexible brush or water to flush the hose. Remove lint and foreign objects. If the hose is flexible corrugated, debris often catches in the corrugations and may require replacement rather than cleaning. 6) Inspect hose fittings and clamps: Replace damaged or rusted worm-gear clamps. If the hose connection at the pump uses a spring clamp, ensure it is seated properly. Loose clamps cause leaks — tighten clamps until snug but avoid over-tightening plastic fittings. 7) Check the drain pump: If the hose is clear but the washer still won’t pump water out, inspect the pump for obstructions at the impeller or consider testing the pump (electrically) for continuity. A failed pump can mimic a hose problem. 8) Replace the hose if damaged: If you found cuts, permanent kinks, crushed sections, or the hose is brittle or severely clogged, replace it (replacement steps below). How to replace the drain hose (practical steps): 1) Acquire the correct replacement hose: Buy an OEM or high-quality universal drain hose sized for front-load washers. Lengths commonly range 4–6 feet. Verify compatibility with WM3570HVA (see parts below). 2) Prepare the washer: Unplug the washer and turn off the water. Pull the washer out to access the back. 3) Drain residual water: Place a pan/bucket under the pump connection. Lower the hose end into the bucket and remove the clamp at the pump outlet or loosen the elbow connection to drain any remaining water. 4) Remove old hose: Loosen the clamp at the standpipe and at the pump outlet and remove the hose. Remove any mounting hooks or straps. 5) Install new hose: Slide the new hose onto the pump outlet and secure with a new worm-gear or spring clamp. Route the hose through the same path, avoiding sharp bends, and attach its hook to the washer cabinet if provided. Insert the hose into the standpipe or drain adapter and secure with a clamp or zip-tie as needed (do not seal it airtight; it must be removable). Ensure correct height and no kinks. 6) Test: Reconnect power and run a drain/spin cycle with a small load or a cup of water in the drum to confirm proper drainage and check for leaks at both ends. 7) Final check: Push the washer back into place and re-secure the hose if required. Safety note: Always unplug the washer before disconnecting hoses or accessing the pump. Wear gloves and eye protection when handling wastewater and sharp clamps. If you are unsure about electrical or pump testing, consult a qualified technician.
Common Symptoms
Water leaking from the back of the washer, water pooling on the floor during drain, washer displays OE or drain-related error codes, slow draining or washer not finishing drain cycle.
Common Causes
- Cracked, split, or punctured drain hose caused by age or abrasion
- Blockage in the hose from lint, coins, detergent residue, or small garments
- Loose or corroded clamps or incorrect hose routing causing kinks or siphoning
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
Run a drain/spin cycle with the washer unplugged? No — instead visually inspect and hand-flush the hose first. To confirm a hose leak, disconnect the hose and run a short drain while leading the hose into a bucket: if the pump pushes water normally into the bucket, the hose or standpipe is the problem.
Frequently Asked Questions
Can I replace the drain hose myself on the LG WM3570HVA?
Yes. Replacing the drain hose is a straightforward DIY job if you can safely move the washer and have basic tools (pliers, screwdriver, bucket). Always unplug the washer first, drain residual water, and secure clamps properly. If you must open the washer to access the pump or you suspect an electrical issue, consider a technician.
Will a universal drain hose work for my LG WM3570HVA?
A universal drain hose will work as long as the hose inner diameter and connector type match the washer's pump outlet and the hose length is sufficient. Use high-quality hose and stainless-steel clamps, ensure correct height and routing, and verify the universal hose fits securely on the pump outlet before finishing the job.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.