A symptom tells you how the washer is misbehaving, not which part failed. These are the usual causes behind each one; the diagnosis at your home confirms which applies.
Not Draining
Water stays in the drum at the end of the cycle, the washer stops with a drain error, or clothes come out dripping. A washer that can't drain also won't spin, by design.
Likely causes
- Drain pump filter or trap blocked by a sock, coin, hair tie or lint
- Drain pump motor failed or its impeller broken
- Drain hose kinked behind the machine or pushed too far into the standpipe
- Standpipe or house drain partly blocked
- Lid or door lock, or the control, not signalling the pump to run
How we narrow it down: The pump filter or access trap is checked first on front-loaders, since a blockage there is the most common cause. The hose and standpipe are checked for kinks and blockages, then the pump is tested for power and for turning freely. A pump that has power but won't pump is replaced.
Not Spinning, Clothes Soaking Wet
The washer fills, washes and drains but won't spin, or spins slowly and leaves clothes heavy with water.
Likely causes
- Slow drain leaving water in the tub, so spin is held off
- Lid switch or door lock not confirming the door is locked
- Drive belt worn or broken, or motor coupler failed
- Unbalanced load that the washer keeps trying to redistribute
- Motor, motor control or shifter fault
How we narrow it down: Draining is ruled out first, then the lid or door lock is tested for its locked signal. With the cabinet open, the belt or coupler is inspected and the motor and its control tested. A single bulky item, such as a bath mat or comforter, is also checked for, because it can cause repeated balance failures.
Won't Start or No Power
Nothing happens when you press start, the display is dark, or it lights up but the cycle never begins.
Likely causes
- Outlet, breaker or GFCI tripped
- Lid switch or door lock not engaging
- Control lock or delay start switched on
- Water supply off, so the washer waits for a fill that never comes
- Control board or user-interface board fault
How we narrow it down: Power at the outlet and the control-lock and delay settings are checked first. Then the lid switch or door lock is tested, since most washers won't start without a confirmed lock. If power and lock are good, the control board is tested.
Not Filling or Filling Slowly
The washer hums or waits with little or no water entering, or a fill takes far longer than it should.
Likely causes
- Supply valves behind the washer partly or fully closed
- Inlet hose kinked or its screen clogged
- Scale-clogged screens in the washer's inlet valve, common on hard water
- Inlet valve coil failed
- Water level sensor or pressure switch fault
How we narrow it down: The house valves and hoses are checked, then the inlet valve's screens are inspected for sediment and scale. The valve coils are tested for power and resistance, and the water level sensor checked. On very hard water, a valve narrowed by scale is replaced rather than cleaned.
Overfilling, or Water Won't Stop
Water rises above the normal level, spills from the dispenser or keeps flowing even with the washer off. Turn off the water valves behind the washer if water is still coming in.
Likely causes
- Inlet valve stuck open or leaking through
- Water level pressure hose kinked, clogged or disconnected
- Pressure switch or water level sensor failed
- Control board relay stuck on
How we narrow it down: The inlet valve is checked for flow with the power off: water that still comes in means the valve is leaking through. The pressure hose and level sensor are checked next, then the control output. The failed part is replaced.
Leaking Water
Water on the floor during or after a wash. Where it shows up is a clue: under the door on a front-loader points to the door seal, the back to the hoses or valve, and under the middle to the pump, tub seal or internal hoses.
Likely causes
- Torn front-load door boot, or debris caught in its folds
- Inlet hoses loose, cracked or with worn washers
- Drain pump seal or filter cap leaking
- Internal hose or tub seal failed
- Too much detergent causing suds to overflow
How we narrow it down: The washer is run with the front or rear panel off so the leak can be seen as it starts. The door boot is checked all the way round, and the hoses, pump and tub connections inspected. The leaking part is replaced; a tub seal failure usually goes with worn bearings and is discussed as one repair.
Door or Lid Won't Lock
The washer clicks but won't start, flashes a lock light or error, or stops at the start of spin because the lock won't engage.
Likely causes
- Door lock or lid lock assembly failed
- Door strike bent or out of line
- Lid switch wiring damaged where it flexes
- Something caught in the latch
- Control board not sending the lock signal
How we narrow it down: The strike and latch are checked for alignment and obstructions, then the lock assembly is tested for power and its locked signal. A failed lock is replaced as an assembly; the wiring near the hinge is checked for breaks.
Door Locked After the Cycle
The cycle has ended but the front-load door stays locked. Most washers hold the door locked until the drum stops and the water level is safe, so wait a few minutes first.
Likely causes
- Water still in the drum because of a drain problem
- Door lock assembly stuck in the locked position
- Control not releasing the lock after a power interruption
- Door handle or latch mechanism broken
How we narrow it down: Draining is checked first, since a washer with water in it won't release the door. If it's empty, the lock is tested and, if needed, released manually through the access point the manufacturer provides. A stuck lock or broken handle is replaced.
Loud Grinding or Roaring During Spin
A roar or grinding that gets louder as the spin speeds up, often worse on front-loaders. A single thump or rattle is usually something else.
Likely causes
- Tub bearings worn, often after the tub seal lets water reach them
- Coin, underwire or button caught between the drum and tub
- Drain pump running dry or with debris in it
- Drive motor or pulley worn
How we narrow it down: The drum is turned by hand to feel for roughness and listened to at speed. Objects between the drum and tub are removed through the heater or pump opening where possible. Worn bearings mean the tub has to be split, which is a major repair; it's quoted as one so the decision is clear.
Shaking, Banging or Walking Across the Floor
The washer shakes hard, bangs the cabinet or moves during spin.
Likely causes
- Washer not level, or one foot not touching the floor
- Shipping bolts still fitted on a new or recently moved front-loader
- Shock absorbers, dampers or suspension rods worn
- Unbalanced load, especially a single heavy item
- Garage floor sloping toward the door
How we narrow it down: Leveling is checked with a level on the top, and all four feet locked. On front-loaders the shipping bolts are checked, then the dampers or suspension rods are tested for resistance. Worn suspension parts are replaced as a set.
Top-Loader Not Agitating
The washer fills and the motor runs, but the agitator or wash plate doesn't move, or moves only one way.
Likely causes
- Agitator dogs or coupler worn
- Drive belt slipping or broken
- Motor coupler failed on direct-drive models
- Shifter or transmission fault
- Lid switch not signalling closed
How we narrow it down: The lid switch is tested, then the agitator is checked for slipping on its drive. The belt or coupler is inspected, and on shift-actuator models the shifter is tested. The worn part is replaced.
Musty Smell or Mold
A sour or musty smell from the drum, dispenser or door seal, or clothes that come out smelling stale.
Likely causes
- Water and residue left in the front-load door boot
- Drain pump filter holding stagnant water
- Too much detergent, or regular detergent in a high-efficiency washer
- Door kept shut between washes
- Slow drain leaving water in the sump
How we narrow it down: The door boot, dispenser and pump filter are cleaned and checked for trapped water. The drain is tested for speed. A cleaning cycle with the manufacturer's recommended cleaner is run, and leaving the door open between washes keeps it from returning.
Clothes Not Coming Out Clean
Clothes come out with residue, streaks, lint or stains still in, or smelling of detergent.
Likely causes
- Too much or too little detergent for the load and water hardness
- Drum overloaded, so clothes can't move
- Water not reaching the right temperature
- Dispenser not flushing detergent properly
- Drain slow, leaving dirty water in the drum
How we narrow it down: Detergent type and amount are checked against the manual, then fill level and water temperature are measured. The dispenser is checked for flow, and the drain for speed. Where a part isn't delivering, it's replaced.
Dispenser Not Emptying
Detergent, softener or bleach stays in the drawer at the end of the cycle.
Likely causes
- Dispenser drawer or siphon caps clogged with residue
- Low water pressure or partly blocked inlet valve
- Dispenser valve or diverter failed
- Powder detergent clumping in humid laundry rooms
How we narrow it down: The drawer and siphons are cleaned, and water flow into the drawer is checked. The dispenser valve or diverter is tested and replaced if it doesn't open.
Stops Mid-Cycle or Cycle Runs for Hours
The washer pauses and never resumes, restarts the same stage over and over, or a normal cycle stretches far beyond its usual time.
Likely causes
- Slow fill or slow drain making the control wait
- Repeated balance correction during spin
- Door lock losing its signal mid-cycle
- Motor overheating and resetting
- Control or sensor fault
How we narrow it down: Fill and drain times are measured, since a slow one is the usual reason cycles drag. The lock signal is checked, and any stored error codes read. The part that holds the cycle up is repaired.
Error Code on the Display
A code appears and the washer stops or won't start. Codes are brand-specific, and most describe a condition such as a slow drain, no fill or an unlocked door, rather than naming a failed part.
Likely causes
- Drain or fill fault
- Door lock not confirming
- Unbalanced load
- Motor or motor control fault
- Sensor or control fault
How we narrow it down: The code is read against the model's service data, then the condition it reports is tested directly. For a drain code, for example, the pump filter, hose and pump are checked before anything else. The code is cleared only after its cause is fixed.
Tearing, Snagging or Staining Clothes
Clothes come out with small tears, pulled threads, or rust-colored or grey marks.
Likely causes
- Rough edge or broken drum lifter
- Object caught between the drum and tub, such as a bra wire
- Drum overloaded, so clothes rub hard against each other
- Rust spots on a chipped drum or from rusty water
- Leaking tub seal letting grease or bearing residue into the tub
How we narrow it down: The drum and lifters are checked for sharp edges and the gap between drum and tub for trapped objects. Stains are matched to their source: rust, detergent residue or grease. The damaged part is replaced.
Burning Smell or Tripping the BreakerSafety
A burning, hot-rubber or electrical smell, smoke from the cabinet, or a washer that trips its breaker or GFCI. Stop the cycle, unplug the washer and leave it off until it's inspected.
Likely causes
- Drive belt slipping and overheating against a seized pulley or drum
- Motor overheating or shorting
- Drain pump motor shorted
- Water reaching wiring from a leak
- Scorched plug or outlet
How we narrow it down: The belt and pulley are checked for glazing and the drum for free movement. Motors and pumps are tested for shorts to ground. Outlet and circuit damage is for a licensed electrician; the washer is retested after the repair before it goes back into use.
