1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Whirlpool WHKF-DWH Whole House Water Filter Housing. This system is designed to provide clean, filtered water throughout your entire home, reducing sediment, sand, soil, silt, and rust from your water supply. It is suitable for households of 1-4 persons and features 3/4-inch stainless steel inlets for durability.
2. Safety Information
WARNING: Electrical Shock Hazard
Before installation or servicing, always turn off the main water supply and disconnect power to any water heaters or other electrical appliances connected to the plumbing system. Failure to follow these instructions could result in electrical shock or personal injury.
This water filter housing is designed for cold water use only. Do not install on hot water lines.
3. Package Contents
Verify that all items are present before beginning installation:
- 1 x Whirlpool WHKF-DWH Filter Housing with pressure relief button
- 1 x Housing Wrench
- 1 x User Manual (this document)
4. Product Features
- 3/4-inch Stainless Steel Inlets: Durable inlets designed to last longer than plastic alternatives, ensuring a secure connection to your plumbing.
- Built-in Pressure Relief Button: Facilitates easier filter replacement by releasing pressure within the housing.
- NSF Tested and Certified: Certified by the National Sanitation Foundation International against NSF/ANSI Standard for material safety and structural integrity.
- Rubber O-Ring: Ensures a secure and leak-proof seal for reliable operation.
- Household Capacity: Ideal for households with 1-4 persons.
- Compatible Filters: Designed for use with Whirlpool genuine replacement filters including WHKF-GD05, WHKF-WHPL, WHKF-WHSW, and WHKF-WHWC.
5. Setup (Installation)
The Whirlpool WHKF-DWH is a Point-of-Entry system, meaning it is installed on your main water line to filter all water entering your home. Installation can be complex and may require professional plumbing assistance. Ensure you have adequate space and accessibility for future filter changes.
Installation Overview:
- Plan Location: Choose a location on your main water line, typically in a basement, garage, or utility area, where the filter will be easily accessible for maintenance.
- Shut-off Valves: Install shut-off valves on both sides of the filter housing. A bypass pipe around the housing is recommended for continued water supply during filter changes.
- Mounting: Securely mount the filter housing using a compatible mounting bracket (e.g., Whirlpool WHKF-B6, sold separately) to provide additional support.
- Connect Plumbing: Connect the filter housing to your plumbing using appropriate fittings. Additional fitting adapters may be required depending on your pipe sizes. Ensure all connections are tight to prevent leaks.
- Initial Flush: After installation, slowly turn on the water supply and check for leaks. Flush the system according to the detailed instructions in the included user guide to remove any air or carbon fines.
Official Product Videos:
Video: This video provides an overview of Whirlpool Water Filtration Housings, showcasing their features and benefits for whole home water treatment.
Video: A product video specifically for the Whirlpool WHKF-DWH water filtration system, detailing its design and functionality.
6. Operating
Once properly installed, the Whirlpool WHKF-DWH Whole House Water Filter Housing operates continuously, filtering all incoming water to your home. There are no active controls required for daily operation. The system works passively to reduce sediment and other particles from your water supply.
7. Maintenance
Regular filter replacement is crucial for optimal performance. The frequency of replacement depends on your water quality and household usage, but it is generally recommended to replace filters every 3-6 months.
Filter Replacement Procedure:
- Turn Off Water Supply: Close the shut-off valves on both sides of the filter housing to stop water flow.
- Release Pressure: Press the red pressure relief button on top of the housing to release any trapped pressure.
- Unscrew Housing: Use the provided housing wrench to unscrew the clear sump from the housing head. Be prepared for some water spillage as the sump detaches.
- Remove Old Filter: Discard the used filter cartridge.
- Clean Housing: Clean the inside of the clear sump and inspect the O-ring. Apply a thin coating of silicone grease to the O-ring to maintain its seal and prevent sticking. Do not use petroleum-based greases as they can damage the O-ring.
- Insert New Filter: Place a new, compatible Whirlpool filter cartridge (e.g., WHKF-GD05, WHKF-WHPL, WHKF-WHSW, WHKF-WHWC) into the sump.
- Reassemble Housing: Carefully align the sump with the housing head and screw it back on by hand until snug. Then, use the wrench for a final quarter-turn to ensure a tight seal.
- Restore Water Supply: Slowly open the shut-off valves. Check for any leaks around the housing. If leaks occur, tighten slightly or re-check O-ring placement.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leaks from housing connections | Loose connections, damaged O-ring, improper O-ring seating, insufficient Teflon tape on threaded pipes. | Ensure all connections are tightened. Inspect the O-ring for damage and proper seating; replace if necessary. Apply silicone grease to the O-ring. Re-tape threaded pipe connections with sufficient Teflon tape (wrap clockwise). |
| Pressure relief button not working | System still under pressure, button mechanism stuck. | Ensure main water supply is completely off. Press the button firmly. If still stuck, gently tap the button area. |
| Reduced water flow | Clogged filter cartridge. | Replace the filter cartridge. |
| Housing appears cracked or damaged | Physical impact, material fatigue, excessive water pressure. | Immediately shut off water supply to prevent flooding. The housing cannot be repaired and must be replaced. Contact Whirlpool customer support. |
9. Specifications
| Specification | Detail |
|---|---|
| Model Name | WHKF-DWH |
| Product Dimensions (L x W x H) | 4.75" x 4.75" x 12.25" |
| Installation Type | Whole House (Point-of-Entry) |
| Purification Method | Sedimentation |
| Inlet/Outlet Size | 3/4-inch Stainless Steel |
| Upper Temperature Rating | 100 Degrees Fahrenheit (37.8°C) |
| Supported Water TDS Level Maximum | 500 PPM |
| Material | NSF Certified Materials |
| Item Weight | 2.92 pounds |
10. Warranty and Support
Specific warranty details for the Whirlpool WHKF-DWH Whole House Water Filter Housing are typically provided with the product packaging or can be found on the official Whirlpool website. Please refer to these resources for the most accurate and up-to-date warranty information.
For technical assistance, replacement parts, or further inquiries, please contact Whirlpool customer support. Contact information can usually be found in the product documentation or on the Whirlpool brand website.
