Washer Not Agitating – What Part Fixes This Problem?
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Understanding the Problem
When a washer stops agitating it means the machine is not moving clothes back and forth during the wash cycle. You may still hear the motor run, the tub may fill and drain normally, or you may hear a humming noise — but the agitator or drum doesn't move. The problem can affect top-load machines with an agitator or impeller-style tubs and may present differently depending on whether the washer is belt-drive, direct-drive, or gearcase-driven. Common mechanical and electrical failures cause lack of agitation. Typical mechanical issues include worn agitator dogs/cogs, a broken motor coupling or drive belt, a failed clutch or transmission (gearcase). Electrical and control issues include a faulty lid switch or lid lock, failed motor, or a defective control/timer. Proper diagnosis is important because some parts (like agitator dogs) are inexpensive and easy to replace, while others (gearcase, motor) are more expensive and time-consuming to repair.
Common Symptoms
Washer fills and drains normally but doesn't agitate during the wash cycle; motor hums without drum movement; agitator turns freely by hand; visible broken plastic dogs or splines; error codes or no motor response.
Common Causes
- Worn or broken agitator dogs (cogs) or a stripped agitator spline
- Broken motor coupling, worn drive belt, or failed clutch/gearcase (transmission)
- Faulty lid switch or lid lock assembly preventing motor engagement
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 PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
To narrow the fault, run a diagnostic or a wash cycle with the lid open (if safe) and listen: if the motor runs but the tub doesn’t move, suspect the coupling, gearbox or agitator dogs; if the motor does not run at all, check the lid switch or motor first. Always unplug the washer before inspecting parts.
Frequently Asked Questions
Can I replace the agitator dogs myself?
Yes — replacing agitator dogs is one of the more straightforward home repairs on many top-load washers. After unplugging the washer, you typically remove the fabric softener cap (if present), unscrew the agitator bolt, pull the agitator up, replace the dogs inside the lower agitator, and reassemble. Follow your model's service manual or a trusted repair video and use OEM or quality aftermarket parts for best results.
How much does it cost to fix a washer that won't agitate?
Cost varies by the failed part: agitator dogs or a repair kit are inexpensive (often $10–$40), drive belts and lid switches are typically $15–$60, motor couplings $20–$60, while gearcase/transmission or motor replacements are more expensive ($150–$400+ for parts, plus labor if you hire a technician). Labor rates vary by region. Proper diagnosis will tell you whether it's a low-cost DIY fix or a larger repair.
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