A clogged dishwasher drain can be a frustrating problem, leading to standing water, unpleasant odours, and dishes that come out dirty. If your dishwasher isn’t draining properly, it’s likely due to a blockage in the drain hose, drain pipe, or filter. The good news? You can often fix the issue yourself with some simple troubleshooting.
In this guide, we’ll walk you through how to unclog a dishwasher drain efficiently. Read on to learn the step-by-step process to restore your dishwasher’s drainage.
Suspect a plumbing problem? Fear not, our team of local Perth plumbers are here to help! Call us today.
CTA buttons
Suspect a plumbing problem? Fear not, our team of local Perth plumbers are here to help! Call us today.
Signs Your Dishwasher Drain is Clogged
Before jumping into solutions, it helps to recognise the symptoms of a clogged dishwasher drain. Here are some common warning signs:
- Water pooling at the bottom: If your dishwasher has standing water after a cycle, it likely has a drainage issue.
- Slow drainage: Water may drain very slowly or not at all.
- Unpleasant odours: A clogged dishwasher drain can lead to a buildup of food debris, resulting in bad smells.
- Dirty dishes after a wash cycle: If your dishwasher isn’t draining properly, it can leave food particles and grease on your dishes.
If you notice any of these issues, it’s time to take action. Let’s go through the steps to unclog your dishwasher drain.
Step 1: Disconnect Power for Safety
Before you begin, always turn off the power to your dishwasher to avoid electrical hazards. You can do this by unplugging the appliance or switching off the circuit breaker.
If your dishwasher is hardwired, turn off the power at the electrical panel. Never work on an appliance that is still connected to electricity.
Step 2: Remove Standing Water
If your dishwasher has standing water inside, you’ll need to remove it before accessing the drain. Use a cup or small container to scoop out as much water as possible, then soak up the remaining water with a sponge or towel.
This will make it easier to access the drain filter, hose, and pipe without making a mess.
Step 3: Clean the Dishwasher Drain Filter
The dishwasher drain filter is one of the most common places for blockages to occur. Here’s how to clean it:
- Locate the drain filter: Usually found at the bottom of the dishwasher, near the spray arm.
- Remove the filter: Most filters can be twisted or lifted out. Check your user manual if needed.
- Rinse the filter: Wash it under warm running water with dish soap. Use a soft brush or an old toothbrush to remove stubborn debris.
- Reinstall the filter: Once it’s clean, put it back in place securely.
If your dishwasher is still not draining properly, move on to checking the drain hose and drain pipe.
Step 4: Unclog the Dishwasher Drain Hose
The dishwasher drain hose connects your dishwasher to the sink drain. A clog in this hose can prevent proper drainage.
Here’s how to unclog the dishwasher drain hose:
- Locate the drain hose: This is usually found under the sink, attached to the sink drain.
- Detach the hose: Use pliers to loosen the clamps holding the hose in place, then carefully remove it.
- Check for blockages: Look inside the hose for food particles, grease, or debris.
- Flush the hose: Run hot water through the hose or use a straightened wire hanger to clear any clogs.
- Reattach the hose: Secure it back in place and tighten the clamps.
Pro Tip: If the drain hose is severely clogged or damaged, it may be best to replace it.
Step 5: Unclog the Dishwasher Drain Pipe
If cleaning the hose didn’t solve the problem, the next step is to check the dishwasher drain pipe. Here’s what to do:
- Inspect the pipe: Look for visible signs of blockage where the dishwasher drain hose connects to the sink drain.
- Use a drain snake: A plumber’s snake can help remove stubborn clogs in the drain pipe. Insert it carefully and twist to break up the blockage.
- Flush with hot water: Pour a mixture of hot water and vinegar down the drain to dissolve grease and debris.
If your dishwasher drain pipe is still clogged, you may need professional help. Contact Swan’s Plumbing for drain plumbing services.
Step 6: Test Your Dishwasher
Once you’ve cleaned the filter, hose and drain pipe, it’s time to test your dishwasher:
- Reconnect everything: Ensure all parts are securely in place.
- Restore power: Plug in your dishwasher or turn the circuit breaker back on.
- Run a short cycle: Start a rinse cycle to check if the water drains properly.
If your dishwasher is draining as expected, great job! If not, you may have a more serious plumbing issue.
When to Call a Professional
If you’ve tried everything and your dishwasher is still not draining, it’s time to bring in a professional plumber. Some problems, like a blocked main drain line or faulty dishwasher pump, require expert attention.
Need help unclogging your dishwasher drain? Swan’s Professional Plumbing provides expert drain plumbing services. Contact us today for fast, professional assistance!
