Whirlpool WTW5100HW2 Water Inlet Valve — What It Does and How to Fix It
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Understanding the Problem
Brief explanation: The water inlet valve (also called the water fill valve) controls hot and cold water entering your Whirlpool WTW5100HW2 top‑load washer. It contains solenoids that open under electronic control and fine inlet screens that filter debris. When it fails you may get no fill, slow fill, only cold or only hot, leaking at the back, or intermittent fills. Step‑by‑step diagnostic and repair instructions: 1) Basic checks before you touch the valve: - Make sure both household water shutoffs (hot and cold) are fully open and there is normal water pressure at the home supply. - Inspect the fill hoses for kinks or damage and feel for flow by disconnecting a hose (have a towel and bucket ready). 2) Visual inspection: - Pull the washer away from the wall, turn off both water shutoffs, and disconnect the fill hoses at the washer. Look into the valve inlets for debris or damaged rubber gaskets. - Check for visible leaks around the valve body or hose connections. 3) Screen and filter cleaning (quick fix if clogged): - Many inlet valves have small metal or plastic screens inside each inlet. Remove debris or mineral buildup with a small pick and flush with water. Reinstall and test. 4) Electrical checks (requires a multimeter): - Restore power, start a cycle that should call for fill and carefully measure for voltage at the valve connector (if you are comfortable and qualified). Alternately, remove power and unplug harness and test each solenoid coil for continuity with a multimeter—you should see low resistance (typically a few hundred to a couple thousand ohms). An open coil indicates a failed solenoid. - If you see proper control voltage during a fill call but the valve doesn’t open, the valve is faulty. 5) Replace the valve (how to fix): - Turn off power to the washer and turn off both water shutoffs. Disconnect fill hoses and place towel/bucket under valve to catch water. - Access the valve: on the WTW5100HW2 the inlet valve is located where the fill hoses attach at the rear/top of the cabinet. Remove the necessary back/top access panel screws to reach it (consult your model’s service manual or photos if unsure). - Photograph or mark the electrical connectors so you can reconnect them correctly. Unplug the wiring harness(es) and remove the mounting screws holding the valve to the cabinet. - Remove the valve assembly, transfer any rubber gaskets if needed (use new gaskets if supplied), and install the replacement valve in the reverse order. Tighten hose connections snugly but not overtightened (use new hose washers if supplied). - Turn on water shutoffs slowly and check for leaks. Restore power and run a test cycle to verify proper fill function and that both hot and cold work as expected. 6) Final verification: - Run a few cycles including a hot fill and cold fill to confirm the problem is resolved and there are no leaks. Safety note: Always disconnect power and turn off water before disassembling. If you are not comfortable working with live voltage, have a qualified technician perform the electrical checks. Improper handling can cause injury or damage.
Common Symptoms
Washer won’t fill, fills very slowly, only fills with hot or only cold, intermittent filling, or water leaking from the back where the hoses attach.
Common Causes
- Clogged inlet screens or mineral buildup restricting flow
- Failed solenoid (electrical coil) in the inlet valve
- Leaking valve body or failed internal seals/gaskets
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Helpful Repair Tip
Before replacing the valve, remove and inspect the tiny inlet screens for mineral debris — cleaning them often fixes slow‑fill problems. Also test each solenoid for continuity with a multimeter; an open coil means replacement.
Frequently Asked Questions
How much does a replacement water inlet valve cost and is it worth repairing?
Typical OEM inlet valves for Whirlpool top‑load washers cost roughly $40–$120 depending on supplier. Labor to replace is usually 30–60 minutes for a DIYer with basic tools. If the valve is the cause of no‑fill, slow fill, or leaking, replacing it is generally the most cost‑effective repair versus replacing the washer.
Can I repair the inlet valve instead of replacing it?
You can sometimes restore flow by cleaning the inlet screens or replacing worn hose washers. However, if a solenoid coil is open or the valve leaks internally, the valve must be replaced. Solenoids and internal seals are not reliably serviceable, so replacement is the recommended fix.
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