Easy Troubleshooting Tips to Clear Blockages and Get Your Dishwasher Draining Again

Simple Solutions to Keep Your Dishwasher Running Smoothly

Its frustrating when you find your dishwasher isn’t draining properly, it’s likely due to a blockage or a minor issue that can be easily fixed at home.  A dishwasher that won’t drain can leave standing water, cause unpleasant odors, and disrupt your kitchen routine.  Below we’ll walk you through simple troubleshooting steps to identify and clear blockages, clean filters, and check critical components like the drain hose and pump.  By following these tips, you can get your dishwasher back to running smoothly without the need for costly repairs.

If your dishwasher is blocked and not draining properly, here’s some tips to help you resolve the issue:

1. Check and Clear Blockages

  • Turn off the dishwasher: Unplug it or switch off the power at the wall to ensure safety
  • Remove dishes: Take out any dishes and empty the racks
  • Inspect the bottom of the dishwasher: Look for food debris, utensils, or other objects that might be blocking the drain area

2. Clean the Filters

  • Locate the filter at the bottom of the dishwasher (typically under the spray arm)
  • Remove the filter:
    • Twist and lift the filter out carefully
  • Clean it thoroughly: Rinse under warm water and use a soft brush to remove any grease, food particles, or debris

3. Check the Drain Hose

  • Access the drain hose: This is usually located at the back of the dishwasher and connects to your sink drain or insinkerator
  • Inspect for kinks or clogs:
    • Disconnect the hose carefully and check for any blockages
    • Use a thin wire or coat hanger to clear any obstructions inside the hose
  • Reconnect securely

4. Check the Drain Pump

  • If the dishwasher still won’t drain, the drain pump may be clogged or faulty
  • Access the pump: Typically located underneath the dishwasher
  • Remove any debris obstructing the pump impeller
  • If the pump is damaged, it may require replacement

5. Check the Air Gap (if applicable)

  • If your dishwasher has an air gap (a small device on the sink), unscrew the cap and clean out any debris blocking the flow

6. Run a Test Cycle

  • After completing the above steps, run the dishwasher on a short cycle to ensure it drains properly

7. Manual Draining (if needed)

If water remains in the dishwasher after troubleshooting:

  • Use a cup or small container to scoop out as much water as possible
  • Use towels or a sponge to absorb the remaining water

When to Call a Professional

If the dishwasher still doesn’t drain after clearing blockages, the issue may involve:

  • A faulty drain pump
  • Clogged plumbing beyond the dishwasher
  • An electrical issue

In such cases, contact a professional technician to diagnose and fix the problem.

Need Help with Plumbing Issues in Wanaka and Queenstown?  Contact Optum Today!
Don’t let plumbing problems disrupt your day.  Our team at Optum is here to provide expert, reliable solutions for all your plumbing needs.  Whether it’s a stubborn clog, a leak, or a full system check, we’re ready to help.

Call us today at 03 443 5718 for fast, friendly service you can trust!