Whirlpool GTW485ASJ5WS — Common Parts Replacement Guide
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Understanding the Problem
Brief explanation: The Whirlpool GTW485ASJ5WS is a top‑load, high‑efficiency (HE) washer. Over time a few components commonly fail and cause symptoms like no fill, no spin, no drain, loud noise, or the washer not starting. Below are practical, step‑by‑step diagnostics and repairs for the most common replaceable parts. Follow each step in order and stop if you find the failed part — there’s no need to replace multiple parts if one test proves the issue. 1) Prepare and safety checks: a) Unplug the washer from power and turn off both hot & cold water supply valves. b) Move the washer away from the wall enough to access the rear and both sides. c) Have basic tools ready: multimeter, screwdrivers (Phillips + flat), nut drivers (1/4", 5/16", 3/8"), pliers, socket set, towel or small pan for water. 2) Identify the symptom precisely: a) Won’t start at all — check lid switch, console, power. b) Won’t fill — check water inlet valve and inlet screens. c) Won’t drain — check drain pump/hose and lid switch. d) Won’t spin but drains — check motor coupling/gearcase or drive. e) Loud grinding — likely transmission/gearcase or worn bearings. 3) Check for error codes/diagnostic mode: Many Whirlpool washers will flash a code or you can enter diagnostics (consult owner manual). Note any codes and refer to the code list. 4) Lid switch (common no‑start/no‑agitate/no‑spin cause) — how to test and replace: a) Symptom: washer won’t start, or starts but won’t agitate/spin. b) Test: With power off, remove the control console or top to access the lid switch harness. Use a multimeter to check for continuity across the lid switch with lid closed. If open (no continuity) when closed — replace. c) Replace: Remove screws or clips holding the top or console, locate lid switch assembly (under front of top), disconnect wiring harness, remove mounting screws, swap in new switch, reconnect harness, reassemble. 5) Water inlet valve (common no‑fill or slow‑fill cause) — how to test and replace: a) Symptom: washer doesn’t fill, fills slowly, fills only on one side (hot or cold). b) Test: Turn on supply valves and check inlet hose screens for debris. With washer plugged in, run a fill cycle and listen for the valve clicking; test solenoids for ~120–130Ω continuity with a multimeter. No continuity or no click — valve likely bad. c) Replace: Turn off water, unplug washer, remove rear access or top to reach valve at top rear, disconnect hoses (have towel), remove mounting screws, disconnect electrical connectors, install replacement, reassemble and test. 6) Drain pump (common no‑drain or error codes) — how to test and replace: a) Symptom: washer won’t drain, water remains, or pump noisy. b) Test: Check drain hose for clogs and proper height. Access pump (usually bottom/front of tub). With power off, check impeller for debris, spin it by hand. Use multimeter across pump motor leads for continuity. c) Replace: Remove front panel or lower access panel, clamp off hoses if needed, disconnect hoses and electrical connector, unscrew pump mounting, install new pump, reconnect hoses and electrical. 7) Agitator / agitator dogs (common poor agitation) — how to inspect and replace: a) Symptom: clothes not getting cleaned or no agitation. b) Test: Remove fabric dispenser cap, remove center bolt (usually 3/8"), lift out agitator. Inspect agitator dogs (small plastic pawls) and splines. If worn or broken — replace agitator dogs or the lower agitator assembly. c) Replace: Install new dogs or full agitator per kit instructions, resecure center bolt, test. 8) Motor, drive coupling, or gearcase (drives but won’t spin or loud mechanical noises): a) Symptom: motor runs but tub doesn’t spin, or loud rumble/grinding. b) Test: With drives disconnected you may inspect coupling between motor and transmission (if applicable) and check for broken plastic pieces. Loud gear grinding typically indicates failed gearcase — this is heavy and typically replaced as an assembly. c) Replace: Motor/gearcase replacement is more advanced — remove cabinet, support tub, detach pulley/drive assembly, remove motor/gearcase, install replacement. If unsure, get professional help. 9) Control board / timer issues (intermittent functions, random stops): a) Symptom: cycles stop mid‑program, no response to controls. b) Test: Visually inspect the control board for burnt components, bulging caps, or loose connectors. Use diagnostic mode if available to see communication errors. c) Replace: Disconnect power, remove control console, unplug connectors, swap board, reassemble. 10) Reassembly and final test: After replacing the suspected part, reconnect water and power, run a short test cycle to verify repair and check for leaks. 11) When to call a pro: If the repair requires dropping the tub, replacing the transmission/gearcase, or you’re uncomfortable working with mains voltage or lifting heavy parts, hire a technician. Safety note: Always disconnect power and shut off water before working on the washer. Use proper PPE (gloves, eye protection). If you’re uncertain about live‑voltage testing, do not proceed — call a certified appliance technician.
Common Symptoms
Washer won’t start or agitate, won’t fill or fills slowly, won’t drain, loud grinding or rumbling during spin, leaks, or error codes displayed on the console.
Common Causes
- Failed lid switch or door/lid latch assembly
- Clogged or failed water inlet valve or screens
- Blocked or failed drain pump, or clogged drain hose
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
Use a digital multimeter: check continuity on the lid switch and inlet valve solenoids first (quick, inexpensive tests). If the pump or motor hums but won’t run, the part often lacks continuity or is physically obstructed — inspect the impeller and hoses before replacing.
Frequently Asked Questions
How do I find the exact replacement part number for my GTW485ASJ5WS?
Find the washer’s model and serial tag — usually on the back of the cabinet, behind the top edge of the lid, or on the door opening. Use that model number at the manufacturer parts site (Whirlpool/Maytag/PartsDirect) or at appliance parts stores. Enter the full model number to see OEM part diagrams and exact part numbers; confirm the part image and mounting style before ordering.
Can I replace these parts myself or should I hire a technician?
You can replace many parts yourself (lid switch, inlet valve, drain pump, agitator dogs) if you have basic hand tools and follow safety steps. More complex repairs (motor/gearcase replacement, major transmission work, or board-level electrical diagnosis) require mechanical skill and heavy lifting — in those cases it’s safer and often more cost‑effective to hire a qualified appliance technician.
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