Kenmore Dishwasher: Making Loud Noise
Commonly a worn wash-pump bearing, a cracked spray arm, or debris in the chopper area. Add a photo of your Kenmore Dishwasher in the box below: the Triage Profile says what it is, how urgent it is, and who to call.
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In the next five minutes
Safe first steps, before the call. Nothing here needs a tool.
Note what the noise sounds like and when it happens, then turn the dishwasher off and switch off its breaker.
Take a photo of the dishwasher and any code on the display, without opening anything.
If you can read its label without moving it, note the brand and model number for the call.
Everything else about this problem
Is it an emergency?
Is a loud noise from a Kenmore dishwasher an emergency?
Usually not an emergency. A grinding, rattling or humming that has just started most often comes from a fan, motor, belt or loose panel. Stop using it and cut the power if the noise comes with a burning smell, smoke or sparks.
Symptoms & causes
Loud noises in a Kenmore dishwasher often indicate issues with the wash pump, motor, or spray arms. Grinding or humming sounds typically point to a failing wash pump motor or a foreign object lodged in the impeller. Rattling or clanking might suggest loose spray arms, a worn-out circulation pump bearing, or items hitting the spray arms.
Tools & parts
You'll likely need basic hand tools such as screwdrivers (Phillips and flathead), pliers, and a nut driver set to access internal components. Replacement parts like a new Kenmore wash pump assembly or a circulation pump motor may be needed. A multimeter might be useful for testing electrical continuity.
Safety first
Always disconnect power to the dishwasher at the circuit breaker before beginning any inspection or repair to prevent electrical shock. Turn off the water supply valve to the dishwasher to avoid leaks or flooding during component removal. Wear protective gloves to prevent cuts from sharp edges inside the appliance and safety glasses to protect your eyes from debris.
When to call a pro
If the noise persists after checking for foreign objects and loose components, a complete wash pump motor replacement is often necessary and best handled by a professional. Complex electrical issues, such as a shorted motor winding or a faulty control board causing the motor to run erratically, require specialized testing tools and expertise. Persistent leaks from the pump seal after attempting a repair indicate a deeper issue with the pump housing or motor shaft, which a certified technician can properly track down and fix.
Questions people ask
Why is my Kenmore dishwasher making a loud grinding noise?
A grinding noise often indicates a foreign object, like a piece of glass or food debris, is caught in the wash pump impeller. It could also signal a failing wash pump motor bearing that needs replacement.
What causes a Kenmore dishwasher to make a loud humming sound but not wash?
A loud humming without washing usually means the wash pump motor is trying to run but is either seized or obstructed. Check for blockages in the impeller or a faulty capacitor preventing the motor from starting.
Can loose spray arms cause loud noises in my Kenmore dishwasher?
Yes, if the upper or lower spray arms are loose or cracked, they can wobble and hit dishes or the tub interior, creating rattling or clanking sounds. Ensure they are securely attached and free of damage.
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What it is, how urgent, who to call
Add a photo of your Kenmore Dishwasher in the box at the top. The Triage Profile says what it is, how urgent it is, and who to call.