WTW5100HW0 Inlet Valve – What Part Fixes Water Fill, No-Fill, or Leak Problems
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Understanding the Problem
What the inlet valve does: The inlet valve (water inlet valve assembly) controls cold and hot water entry into the washer. The machine energizes one or both solenoids to open the respective port(s) and allow fill. Over time the solenoids can fail, internal seals/screens can clog, or the plastic valve body can crack and leak. Step-by-step diagnostic & repair steps: 1) Confirm symptom: Is the washer not filling at all, filling only hot or only cold, filling very slowly, or leaking from the back? Note exactly what happens. 2) Check the easy things first: a) Make sure the household water shutoff valves for the washer are fully open (both hot & cold). b) Remove and inspect the inlet hoses — check for kinks and debris in the hose ends. A kinked hose or closed valve is a common cause. c) With hoses detached (have a towel/bucket ready), briefly open the house valves to confirm good water pressure to the hoses. 3) Inspect screens/filters: Shut off water and disconnect the inlet hoses from the washer. Look inside the washer inlet ports for small mesh screens (strainers). If clogged with debris or mineral scale, gently clean them with a small pick and rinse. 4) Electrical test (multimeter): With power unplugged, disconnect the wiring harness from the inlet valve. Measure coil resistance across each solenoid connector. Typical good coil resistance for these valves is often in the several hundred to low-thousands ohms range (commonly ~600–1500 ohms). An open/infinite reading means the coil is bad. A short to chassis (continuity to ground) is also a failure. 5) Operate a fill from control (functional test): Reconnect harness, plug washer in, set a fill-only or diagnostic fill (refer to owner/service manual), and listen at the back of the washer when a fill should start. You should hear one or two distinct clicks as solenoids energize. If no click and you have proper voltage at the harness when the machine calls for fill, the valve is bad. 6) Visual/leak check: Inspect the plastic valve body for cracks or water dripping from the valve while machine is filling. Replace if leaking. 7) Replace the inlet valve if any of the above tests show failure (no continuity, failed energize test, or leaking/cracked body). Replacement instructions follow. Basic replacement steps (what you’ll do): 1) Tools: phillips & flat screwdrivers, socket set or nut drivers, needle-nose pliers, multimeter, towel/bucket, replacement inlet valve assembly. 2) Safety first: Unplug the washer from power and shut off both hot and cold water shutoff valves. 3) Move washer away from wall. Place towel to catch drips. 4) Disconnect the inlet hoses from the back of the washer. Drain any water into a bucket. 5) Remove the access to the inlet valve: on many top-load washers the valve is accessible by removing the rear access panel or the top of the cabinet (consult your model manual). Remove screws securing the panel or top and set aside. 6) Note or photograph wiring and hose locations. Disconnect the electrical connectors from the inlet valve (they are keyed). Remove the mounting screws securing the valve to the bracket. 7) Remove the old valve assembly. Transfer any mounting brackets or gaskets if needed. 8) Install the new inlet valve: position it, secure screws, reconnect electrical connectors to the correct solenoids, and reattach inlet hoses to the valve ports. 9) Reinstall access panel/top, reconnect water hoses to household, open shutoff valves slowly, check for leaks at hose connections and valve body. 10) Plug in the washer and run a short rinse/fill cycle to confirm proper fill operation (both hot and cold according to cycle selection). Check again for leaks. Safety note: Always disconnect power before touching wiring. When testing coils or energizing solenoids with live voltage, only do so if experienced and take extreme caution — unsafe handling of mains voltage can cause injury or death. If you’re not comfortable with electrical testing or disassembly, hire a qualified appliance technician.
Common Symptoms
No water fill, slow fill, fills only hot or only cold, intermittent fill, or water leaking from the rear of the washer around the inlet area.
Common Causes
- Clogged inlet screens/strain ers with mineral scale or debris
- Failed solenoid coil (no continuity or won't actuate)
- Cracked or leaking plastic valve body
- Wiring harness or control not sending voltage to the valve
- Low household water pressure or closed/kinked supply hoses
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Helpful Repair Tip
To confirm the valve is bad: after verifying water supply and cleaning strainers, disconnect the valve harness and measure each solenoid's resistance. An open/infinite ohms reading or a solenoid that does not click/energize during a fill cycle means replacement is required.
Frequently Asked Questions
How much does it cost to replace the inlet valve on a WTW5100HW0?
Part cost for a Whirlpool inlet valve typically ranges from $40–$120 depending on OEM vs aftermarket. Labor varies by location, but DIY replacement is straightforward and usually takes 30–60 minutes for a homeowner with basic tools. If hiring a technician, expect additional labor charges.
Can I clean or repair the inlet valve instead of replacing it?
If the problem is just clogged screens, you can clean the strainers and restore proper flow. However, if a solenoid coil has failed (open circuit), the plastic body is cracked, or the valve leaks, cleaning won't fix it — replacement is required. Because inlet valves are inexpensive and wear-prone, replacement is usually the reliable fix.
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