The 3385556 whirlpool Drain Hose is a designated drain conduit used on Whirlpool laundry and dishwashing appliances; it is indeed a flexible fluid-transfer hose designed to carry wastewater from the appliance’s tub or pump to the household drain, garbage disposal, or standpipe.As a mechanical plumbing component, it is typically formed from reinforced rubber or corrugated PVC with machine-fit ends or molded fittings that match specific Whirlpool drain outlets and clamps.The part number identifies the exact geometry and connector style required for compatibility with certain Whirlpool models.
Inside the appliance system the drain hose functions as the final fluid path for expelled wash water and interacts directly with the drain pump, tub outlet, check valves, and external drain interfaces such as air gaps, disposals, or drainage stacks. Proper routing and secure connections are necessary to maintain pump efficiency, prevent backflow, and avoid siphoning or leakage; the hose length, diameter, material versatility and end fittings affect flow resistance, potential for kinking, and thermal/chemical compatibility with detergent and hot water. Installation considerations such as creating a high loop or connecting to an air gap are commonly required to meet plumbing and appliance manufacturer specifications and to prevent contamination of the appliance by backflow.
In this article readers will find technical details about the 3385556 Whirlpool Drain Hose including its functional role, model compatibility and fitment cues, common failure modes and symptoms (for example leaks, clogs, kinks, odors, and slow or incomplete draining), methods for systematic troubleshooting, and practical replacement considerations. Coverage will include inspection points, verification of pump and drain interfaces, recommendations for selecting a like-for-like replacement (length, inner diameter, and connector type), and procedural notes for safe removal and installation to restore correct drainage performance. The focus is on clear, service-oriented guidance that a technician, engineer, or appliance owner can use to diagnose issues and perform an appropriate repair or replacement.
Table of Contents
- function and Operational role of the drain Hose Assembly in Whirlpool Washers
- How the 3385556 Whirlpool Drain Hose Works Inside the Appliance
- Common Failure Symptoms and Diagnostic Indicators of Drain Hose Malfunction
- Replacement Considerations, Compatibility and Installation Procedures for the Drain Hose
- Q&A
- Final Thoughts
Function and Operational Role of the Drain Hose Assembly in Whirlpool Washers
The 3385556 Whirlpool Drain Hose is the fluid-conveyance link between the washer’s drain pump outlet and the household drain or standpipe. Its primary function is to carry the pumped discharge away from the tub while resisting kinks, collapse, and leakage under cyclic pump pressure and occasional vacuum conditions. Correct inner diameter, wall flexibility, and secure coupling to the pump outlet determine hydraulic performance; mismatched fittings or a hose rated for a different pump outlet geometry will reduce flow efficiency, permit backflow if not routed with a high loop or air-gap, or cause point-loading at clamps that leads to premature failure.
- Typical operational symptoms of a compromised hose: slow draining, water remaining in the tub, leaks at the hose clamp, or unusual pump noise from cavitation.
- Compatibility factors to check: connector type (slip-on vs. barbed), nominal inner diameter, hose length required for routing, and material resistance to detergents and temperature cycling.
During the drain cycle the pump generates a transient flow that the hose must convey without creating excessive head loss; long runs, sharp bends, or internal restriction (lint, grease, or foreign objects) increase pump work and can extend cycle time. Technicians troubleshooting drain issues should inspect the hose for external damage, compressions, internal blockages, and secure clamp seating, and measure drain time against expected performance after clearing or replacing the hose. Replacing a damaged or incorrectly sized hose with the correct part restores the designed hydraulic path and reduces the likelihood of recurring pump overload, leakage, and water-management faults.
| Item | Description |
|---|---|
| Nominal inner diameter | Typically around 1-1/4 in (nominal); must match pump outlet for proper sealing |
| Material | Flexible, detergent-resistant rubber or corrugated plastic to resist kinking and abrasion |
| Connection | Slip-fit or barbed end secured with a clamp; correct fit prevents leaks and losses |
How the 3385556 Whirlpool Drain Hose Works Inside the Appliance
The 3385556 Whirlpool Drain Hose serves as the flexible conduit that carries wastewater from the washer’s drain pump to the household drain connection. Internally it connects to the pump outlet with a clamped or molded barb and routes the wash water out of the cabinet; its inner bore and wall construction are selected to resist kinking, crushing, and chemical exposure from detergents and hot water. As an OEM-designated hose for compatible Whirlpool models, it typically matches the pump outlet geometry and common household tailpieces so installers get a reliable mechanical and fluid seal without modifying the pump housing or drain fittings.
Inside the appliance the hose’s behavior affects both flow rate and backflow prevention: a smooth, suitably sized bore minimizes turbulence and trapping of lint, while proper routing (high loop or an air gap/check valve where provided) prevents siphoning of greywater back into the tub. Routine service tasks-inspecting for soft spots, pinches, obstructions, and secure clamps-quickly reveal whether a hose is the source of slow or failed drains. For troubleshooting and replacement, technicians should verify hose orientation, clamp torque, and that the hose is not compressed by panels or hoses nearby; replacing a damaged hose with the correct part number ensures correct fit and reduces the need to alter the pump outlet or drain termination.
- Typical features: flexible reinforced wall, pump-barb/end-fit geometry, clamp-compatible ends, and resistant inner bore.
- Common failure modes: kinks,collapsed sections,external crush damage,or lint/scale obstruction.
- Service actions: inspect for leaks, clear obstructions, replace if deformed, and secure clamps after re‑routing.
| Item | Description |
|---|---|
| Material | Flexible reinforced polymer or rubber designed to resist heat, detergents, and abrasion. |
| Connection | Clamped barb or molded end matching Whirlpool pump outlets and standard household tailpieces. |
| Function | Conveys wastewater from drain pump to household drain while maintaining a leak-tight seal and flow profile. |
Common failure Symptoms and Diagnostic Indicators of Drain Hose Malfunction
The 3385556 Whirlpool Drain Hose is the flexible discharge line that channels wastewater from the washer pump to the household drain connection. As a functional component it must match the pump outlet diameter, maintain a smooth, unobstructed flow path, and resist kinking, abrasives, and typical detergent chemistries; common constructions are corrugated or reinforced PVC/PE with barbed or slip-on ends secured by clamps. Proper fit and routing affect behavior: an undersized or damaged hose increases pump back-pressure and current draw, misrouted hose geometry can induce siphoning or slow drain, and incompatible fittings can produce leaks at the connection points. Verify hose inner diameter, length, and connection type against the washer’s service manual when replacing the part to ensure compatibility and consistent hydraulic performance.
Typical diagnostic indicators of drain hose malfunction are observable during a drain cycle and with basic inspection tools. Symptoms such as slow or incomplete draining, water remaining in the tub, periodic leaks at joints, unusual pump noise or increased pump current, and intermittent odor all point to restrictions, kinks, leaks, or material failure in the hose or its fittings. Troubleshooting steps that provide useful diagnostic data include visually inspecting the hose for cracks and collapsed sections, briefly disconnecting and flushing the hose to confirm unrestricted flow, checking clamps and barb engagement for secure seals, and correlating pump electrical behavior with hydraulic resistance. For field replacements, selecting a hose that maintains the original diameter, material rating, and connector style reduces the likelihood of repeat failures and ensures the washer’s drain system operates within designed limits.
- Slow draining – partial blockage,internal collapse,or tight bends reducing flow area.
- Leaks at fittings – loose clamps, worn barb, or split hose material at connection points.
- Pump overcurrent/noisy pump – increased back-pressure from blockage or kinked hose.
- Intermittent odors – trapped wastewater in corrugations or incomplete drain cycles.
| Item | Description |
|---|---|
| Inner diameter | Typically ~1 inch (measure to confirm); must match pump outlet to avoid flow restriction. |
| Material | Corrugated or reinforced PVC/PE selected for flexibility and chemical resistance. |
| Common failure modes | Kinking, abrasion wear, splits/cracks near fittings, and internal clogging from lint/debris. |
| Compatibility check | Confirm length, connector type, and diameter against the washer service manual before replacing the 3385556 Whirlpool Drain Hose. |
Replacement Considerations, Compatibility and Installation Procedures for the Drain Hose
The 3385556 Whirlpool Drain Hose serves as the pressure and gravity conduit between the washer pump discharge and the household drain. It must match the pump outlet diameter and connector style (barbed slip-on, push-fit, or threaded adapter) to ensure a leak-free seal and correct hydraulic behavior during high-volume discharge. The hose material is selected to resist hot water,detergents,and abrasion; a flexible,reinforced polymer or rubber construction prevents collapse under intermittent pressure pulses from the pump while allowing routing around other components. Before replacement, verify the OEM part number and confirm the pump outlet geometry and the drain termination (standpipe, air gap, or laundry tub) to avoid compatibility issues or restricted flow that can cause floor drain backup or extended pump run times.
Replacement and installation require attention to mechanical sealing, routing, and strain relief to prevent siphoning, kinks, and clamp-induced damage. Use a corrosion-resistant worm-drive or 1/4-turn band clamp sized to the hose and pump barb and tighten until the hose is snug but not deformed; over-tightening can crack pump housings or split the hose. Secure the hose in a high loop or to an air-gap fitting to prevent backflow; trim excess length only after verifying routing clearance and then re-secure the clamp. After installation, run a short drain cycle and inspect for leaks, vibration at the pump outlet, and proper drainage rate; replace clamps and test fittings if any seepage appears.
- Confirm OEM number and pump outlet diameter before ordering or fitting an adapter.
- Remove old clamp and cut at a clean, square end to ensure full contact with the barb.
- Install new clamp, seat hose fully on the fitting, position high loop or air gap, then test under load.
| Item | Description |
|---|---|
| Inner diameter | Must match pump discharge barb (verify mm/inch sizing) for proper sealing and flow. |
| Material | Flexible reinforced rubber or polymer chosen for heat, chemical resistance, and fatigue life. |
| Connector type | Barbed slip-on, push-fit, or threaded-use compatible clamps or adapters to avoid leaks. |
Q&A
What is part 3385556 for Whirlpool appliances?
Part 3385556 is an OEM drain hose assembly sold for certain Whirlpool appliances. It replaces the flexible hose that carries wastewater from the appliance’s pump to the household drain, air gap, or disposal. Always confirm compatibility by checking your appliance model number and the manufacturer parts list before purchasing.
How do I know if the 3385556 drain hose needs to be replaced?
Replace the hose if you see visible cracks, splits, hard or brittle areas, bulges, pinholes, persistent leaks, or if the hose has been crushed or permanently kinked. Also replace it if repeated clogs or foul odors persist after cleaning, or if the hose’s fittings are corroded or damaged and cannot form a watertight seal.
Can I install the 3385556 drain hose myself, and what tools do I need?
Yes – many owners can replace it themselves. Basic steps: disconnect power and water (follow appliance-specific safety instructions), access the hose connection(s), loosen and remove the old clamps, detach and remove the old hose, fit the new hose onto the pump and drain/outlet, secure with appropriate clamps, route the hose correctly (high loop or air gap), restore power/water and run a test cycle to check for leaks. Typical tools: screwdriver or nut driver (for hose clamps), pliers, and a bucket or rag to catch residual water.If you’re not cozy working on appliances, hire a qualified technician.
what type of clamps or fittings should I use to secure the 3385556 hose?
Use stainless-steel worm-gear hose clamps sized to the hose diameter for a reliable, adjustable seal. For some factory connections you might need an OEM-style crimp clamp or machine clamp-check the appliance’s service manual. Avoid using non-recommended makeshift fasteners (e.g., thin zip ties that can cut into the hose) and ensure the clamp is tight enough to prevent leaks but not so tight that it damages the hose.
How should I route the 3385556 drain hose to prevent backflow or flooding?
Route the drain hose with a high loop: secure the hose so the highest point is near the underside of the countertop or as high as the appliance allows, or install an air gap where required by local plumbing codes. This prevents wastewater from flowing back into the appliance. For washing machines,make sure the hose end is properly inserted into and secured at the standpipe or outlet; do not submerge the hose end in water.
Will the 3385556 hose fit other brands or models?
Possibly - the hose can fit other brands if the length, inner/outer diameters, and end fittings match. However, fitment is not guaranteed. Always compare dimensions and connection types or consult the parts diagram for both appliances before substituting.Using the correct OEM part is the safest way to ensure a proper fit and seal.
How do I clear a clog in the 3385556 drain hose without replacing it?
First disconnect power to the appliance. Remove the hose and flush it with water (from a garden hose or sink) to dislodge debris.For stubborn blockages use a flexible drain snake made for appliance hoses or a length of coat-hanger carefully, taking care not to damage the hose interior. Check and clear the air gap, garbage disposal knockout, and the appliance’s pump/filter area as clogs often occur there. Avoid harsh chemical drain cleaners that can degrade hose material.
If I replace the 3385556 myself, will it void my appliance warranty?
Replacing a consumable part like a drain hose yourself typically does not void the appliance’s full warranty, but specifics vary by manufacturer and warranty terms. Installing parts improperly could affect coverage for damage caused by the installation. Keep records and receipts for the OEM part and any work performed,and check your appliance warranty conditions or contact the manufacturer if unsure.
Final Thoughts
The 3385556 Whirlpool drain hose serves a focused but essential role in washer function by providing a reliable channel for wastewater to exit the appliance. As an OEM-designated component, it is engineered to meet the dimensional, pressure and material requirements specific to compatible Whirlpool models, helping to prevent leaks, backups and related water damage that can impair performance and home safety.
Accurate diagnosis is significant when symptoms such as slow drainage, audible water flow issues or visible leaks appear; similar symptoms can originate from pumps, hoses, clogs or installation faults, so confirming the hose as the source avoids unnecessary parts replacement. When replacement is necessary, choosing the correct 3385556 hose and following proper installation and secure fittings restores intended operation and reduces the likelihood of recurring problems.
Handled with appropriate troubleshooting, correct part selection and proper installation, replacing a worn or damaged 3385556 Whirlpool drain hose is a straightforward maintenance step that supports appliance longevity and reliable performance. Whether performed by a qualified technician or an experienced DIYer following manufacturer guidance, this attention to detail helps maintain safe, effective washer operation.
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