Whirlpool WTW5840BW0 Washer — Common Problems, Diagnostics & How to Fix Them
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Understanding the Problem
Brief explanation: The Whirlpool WTW5840BW0 is a high‑efficiency top‑load washer that can exhibit common symptoms such as not starting, not spinning or draining, overfilling, loud noises, and excessive vibration. Most issues are caused by a few wearable parts (lid lock, drain pump, inlet valve, suspension rods/shocks) or by electrical/control problems. Below are practical diagnostic and repair steps you can follow to find and fix the problem(s). 1) Safety & prep - Unplug the washer and turn off both hot and cold water supply valves before you start. Note your model/serial tag (usually behind the lid or on the cabinet) to confirm replacement parts. 2) If the washer won’t start or accept commands - Check power: confirm outlet has 120VAC using a non‑contact tester or plug a lamp. Verify house breaker/fuse. - Inspect lid lock: If the washer doesn’t lock and start, the lid lock assembly often fails. With power off, visually inspect the lock for broken plastic. With power on (careful), start a cycle and listen — you should hear the lock actuate. Use a multimeter to check continuity of the lid lock harness when the lock is engaged. - Test control board: If the lid lock and power are OK but nothing responds, tap the buttons and check for error codes or blinking lights. A failed user interface or main control board may need replacement. 3) If the washer won’t drain or spin - Check for error codes on the display (if any). Common mechanical causes: a) Clogged drain pump or hose: Remove lower access panel or tilt tub to inspect the pump inlet and drain hose for lint, coins, socks or debris. Clear blockages. If pump is noisy or won’t run, test pump for continuity with a multimeter. b) Faulty drain pump motor: If the pump motor has no continuity or hums but doesn’t move water, replace the pump. c) Lid lock or lid switch: The washer won’t spin if it thinks the lid is open. Test/replace the lid lock assembly if it fails to lock or report closed. d) Drive/motor issues: If the motor hums but won’t spin, check for seized rotor or electrical faults. 4) If the washer overfills, fills slowly, or fills with only hot/cold - Inspect the water inlet valve(s): mineral deposits or a failed solenoid can cause slow fill or stuck open leading to overfill. Turn off water, remove hoses, inspect screens, clean them, and test solenoids for continuity. Replace inlet valve if defective. - Check pressure switch/tub air hose: The washer senses water level using an air pressure switch. If the hose is disconnected, clogged, or the switch is bad, fill level errors occur. 5) If the washer is noisy or vibrates excessively - Check load balance: Large or lopsided loads will cause vibration—redistribute laundry. - Inspect suspension rods/shocks or dampers: Worn shocks or suspension rods cause banging and excessive movement. Replace broken or weak suspension parts. - Check bearings or tub: A grinding or rumbling often indicates worn bearings or a failing tub/drum assembly — these are more advanced repairs. 6) Practical replacement steps (common parts) - Lid lock assembly replacement (typical): Unplug washer. Open lid, remove screws securing top or control panel as needed to access lock. Disconnect harness, remove old lock, install new unit, reconnect harness, reassemble. Test cycle. - Drain pump replacement: Unplug washer. Access pump via lower front or back panel. Place towels to catch water, disconnect hoses and electrical connector, remove mounting screws/clips, install new pump, reconnect hoses (secure clamps), restore power and test drain cycle. - Water inlet valve replacement: Turn off water supply and unplug. Remove rear panel, disconnect inlet hoses and wiring, remove valve mounting screws, install new valve and reconnect hoses and wiring, turn on water and check for leaks. - Suspension rods/shock replacement: Unplug washer. Open lid, remove agitator or fabric dispenser as needed to access top bolts, support the tub while removing top bolts, lift top or cabinet to access shocks, remove and replace shocks (note orientation), reassemble and test. - Control board replacement: Unplug washer. Remove console or rear panel as required, label and disconnect all harnesses, unscrew board, swap in new board, reconnect harnesses in the identical positions, reassemble and test. Safety note: Always disconnect power and water before doing any repairs. If you are not comfortable working with electricity, water, or heavy components, hire a qualified appliance technician. Confirm correct replacement part numbers for your exact model/serial before ordering parts.
Common Symptoms
Won't start or respond; won't spin or drain; slow or no fill; leaks; loud banging/grinding or excessive vibration.
Common Causes
- Failed lid lock or lid switch
- Clogged or failed drain pump
- Faulty water inlet valve or clogged inlet screens
- Worn suspension rods/shocks or drum bearings
- Faulty user interface or main control board
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Helpful Repair Tip
To confirm a bad drain pump: start a drain/spin cycle and listen for the pump. If you hear the motor humming but no water moves, or there’s no sound at all and power is present at the pump connector, replace the pump.
Frequently Asked Questions
How do I read error codes on my WTW5840BW0?
Some Whirlpool washers flash fault codes via the display or LEDs. Start by cancelling a cycle and then start a diagnostic or service mode per the service manual for your model (procedures vary by model year). Common codes point to motor, lid lock, water level, or communication faults. If your washer shows no codes, run simple tests: listen for the lid lock, observe fill/drain behavior, and check for obvious blockages.
Is it worth repairing a WTW5840BW0 or should I replace the washer?
If the issue is a single replaceable part (drain pump, lid lock, inlet valve, suspension rods, control board) repairing is usually cost‑effective. If there are multiple major failures (seized motor, tub bearings, rusted cabinet) or repeated electronic/control failures, replacement may be more economical. Compare repair part/labor cost to current washer prices and consider age, energy efficiency, and remaining life.
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