Dishwasher Won't Stop Running

Quick answer

Turn off the dishwasher at the circuit breaker to stop it immediately. Check for a clogged drain, stuck float switch, or faulty control board. Reset the appliance after clearing any blockages.

Confirm the symptom

• Dishwasher continues running past the end of the cycle
• Dishwasher makes normal sounds but won't complete the cycle
• Dishwasher restarts the cycle repeatedly

Tools and prep

• Screwdrivers (flathead and Phillips)
• Flashlight
• Plastic putty knife
• Bucket
• Work gloves
• Turn off power at the circuit breaker
• Turn off water supply to the dishwasher

Step-by-step troubleshooting

1. Check for Drain Clogs
   Do: Remove the lower rack and inspect the drain area for food debris or clogs.
   Observe: Debris blocking the drain or standing water at the bottom.
   Means: Clogged drain prevents the cycle from completing.
   Next: Clean the drain and filter thoroughly.
2. Inspect Float Switch
   Do: Locate the float switch near the drain and gently lift it with a plastic putty knife.
   Observe: Float switch stuck in the down position or not moving freely.
   Means: A stuck float switch can prevent the dishwasher from draining and ending the cycle.
   Next: Clean the area around the float switch and test by running a short cycle.
3. Reset the Dishwasher
   Do: Unplug the dishwasher or turn off power at the circuit breaker for 1 minute, then restore power.
   Observe: Dishwasher resets and completes the cycle normally.
   Means: A power reset can clear temporary control board glitches.
   Next: Run a test cycle to confirm the issue is resolved.
4. Check Control Board
   Do: Inspect the control board for signs of damage, such as burn marks or loose connections.
   Observe: Visible damage or disconnected wires on the control board.
   Means: A faulty control board may need replacement.
   Next: Consult a professional technician for control board replacement.
5. Test Water Inlet Valve
   Do: Check if water continues to fill the dishwasher after the cycle should have ended.
   Observe: Water keeps entering the dishwasher even when the cycle is complete.
   Means: A faulty water inlet valve may be causing the issue.
   Next: Replace the water inlet valve if faulty.
6. Inspect Door Latch
   Do: Ensure the door latch is properly engaged and not damaged.
   Observe: Door latch is loose, broken, or not latching securely.
   Means: A faulty door latch can prevent the dishwasher from completing the cycle.
   Next: Replace the door latch assembly if necessary.

Common causes

Parts matching

Common parts needed to fix a dishwasher that won't stop running include:

• Drain filter
• Float switch
• Control board
• Water inlet valve
• Door latch assembly
• Timer or clock assembly

Before purchasing parts, check the dishwasher's model number to ensure compatibility.

When to call a professional

• The dishwasher still won't stop running after following all troubleshooting steps
• You notice electrical damage or burning smells from the control board
• You're unsure about handling electrical components or internal parts
• The issue involves replacing the control board or water inlet valve
• The dishwasher is under warranty and you don't want to risk voiding it

FAQ

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