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FAQ
5 min. read

Dishwasher Draining Problems: Why Your Dishwasher Won’t Empty

If you’re managing a busy household and rely on your dishwasher to take care of the bulk of the washing up, you might start to panic if you see water collecting in the bottom of your appliance – or even spilling over – once the last cycle is complete.

This, however, is quite a common issue, and there are a few reasons why it might be happening. To help you keep your dishwasher healthy, we’ve got a handy table of common issues and how you might be able to remedy them.

Troubleshooting a clogged dishwasher: DIY solutions for smooth draining

If your dishwasher is experiencing drainage issues, several potential culprits may be responsible. The primary suspect is often a blocked dishwasher filter, a common source of problems in water expulsion. Additionally, complications with the dishwasher’s air gap, drain valve, drain hose, or even the connection to your garbage disposal could contribute to the clog. It is essential to check each part for obstructions or issues in order to guarantee that the water flows out of your dishwasher smoothly. By promptly identifying and resolving these problems, you can keep your dishwasher operating at its best by avoiding future challenges.

Dishwasher draining issues and DIY tips for troubleshooting a clogged dishwasher:

When your dishwasher displays error code E15, it indicates a blockage that’s preventing proper drainage. This can be caused by various factors, but many can be resolved with straightforward DIY troubleshooting techniques.

A person wearing gloves holds a dishwasher, ready to clean, install or repair it

  • Clogged Drain Filter or Pump: Check for debris; clean the filter or pump.
  • Blocked Drain Hose: Inspect for kinks; remove any obstructions.
  • Garbage Disposal Connection: Ensure knockout plug removal.
  • Dishwasher Drain Pump Not Working: Diagnose malfunctions; consider professional repair.
  • Air Gap Issues: Check for clogs; clear any obstructions.
  • Faulty Check Valve: Consider professional repair for valve replacement.
  • Improper Installation: Follow manufacturer guidelines; ensure correct installation.
  • Clogged Sink Drain: Clear any blockages in the sink drain.
  • Faulty Drain Solenoid: Seek professional help for solenoid replacement.
  • Issues with the Drain Impeller: Inspect for damage; clear blockages.

My dishwasher won’t drain, what should I check for?

ProblemFixing a Dishwasher That Won’t Empty
Is the filter blocked?Dishwasher clogged filter. You can find the filter inside your dishwasher at the bottom. These can usually be pulled out or twisted and removed. Get rid of any buildup or debris, rinse under the tap and replace.
Is there a blockage in the waste hose?Check the drain hose for clogs. The waste hose is at the back of your appliance. Simply turn the appliance off at the mains, then disconnect the hose and then blow through it to clear any blockages before reattaching.
Did the cycle complete?This might be difficult to detect, but it is possible an electrical fault caused the cycle to be interrupted. Either find a button to reestablish the drain cycle or reset the whole process.
Is the door clicking shut properly?The appliance may not drain if the door has come loose during the cycle. Ensure you push the door firmly and feel it click shut before restarting the appliance cycle.
Is your sink drain pipe blocked?If your dishwasher pipe is connected up to the sink waste pipe, ensure that it is not this pipe that has become blocked. You can buy dedicated cleaning products to unblock your sink drain pipes.

Maintaining a clog-free dishwasher: practical tips for a smooth operation

There are a few things you can do to try and eliminate some of these common dishwasher draining issues. Firstly, if you find your filter gets blocked regularly, try scraping plates and bowls clean before putting them in the dishwasher. This will mean less food getting clogged in your drain. Also, consider where your dishwasher is positioned, you might want to leave a little more room for your dishwasher hose to ensure it does not become kinked.

Additionally, it’s crucial to emphasize the importance of regular maintenance to prevent these issues from resurfacing. Remember, a proactive approach to routine cleaning of the dishwasher filter and drain hose can significantly contribute to preventing future problems. We recommend incorporating a monthly cleaning schedule to keep these vital parts clear and functioning optimally.

For further insights into keeping your dishwasher in top shape, explore our guide on How Often Should You Deep Clean Your Dishwasher. For the best results, consider professional servicing from a dedicated expert on a regular basis, ensuring your dishwasher operates seamlessly in the long run.

The benefits of regular dishwasher servicing

When you invest in regular dishwasher servicing from a professional, you get peace of mind knowing that any imminent faults have been taken care of before they rear their head.
Knowing that you can use your dishwasher as much as you like, when you need it most, can be a real time saver – it can also save you a lot of headaches which come with faulty dishwashers and the mess that can come with drainage issues.

At Domex, we provide dedicated dishwasher repairs and maintenance, so whether your dishwasher won’t drain properly or you can’t get it to start at all, we’re on hand to help. Simply contact our team today to book an appointment and we’ll be happy to set up a time slot with one of our engineers to suit you – we even provide our services for business and hospitality companies.

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