How to Clean a Dishwasher Filter
A dirty dishwasher filter is one of the most common reasons dishes come out smelling musty, looking cloudy or not fully clean. The good news is that cleaning a dishwasher filter is easy and takes less than 10 minutes. This step-by-step guide explains exactly how to do it.
Why Does a Dishwasher Filter Need Cleaning?
The filter at the bottom of your dishwasher catches food scraps, grease and debris during the wash cycle. Over time, this material builds up in the filter and starts to smell, reduces the dishwasher's cleaning performance, and can even cause water to drain slowly. Most manufacturers recommend cleaning the filter every 1–3 months, depending on how often you use your dishwasher.
What You Will Need
- Warm water
- Dish soap or washing-up liquid
- A soft brush or old toothbrush
- A clean cloth or paper towel
Step-by-Step: How to Clean a Dishwasher Filter
Step 1: Remove the Lower Rack
Pull out the lower dish rack completely and set it aside. This gives you clear access to the dishwasher floor.
Step 2: Locate the Filter
The filter is located at the bottom of the dishwasher, usually in the centre or at the back corner. Most modern dishwashers have a cylindrical mesh filter with a flat coarse filter underneath it.
Step 3: Remove the Filter
Rotate the cylindrical filter a quarter-turn anticlockwise (or as indicated by an arrow on the filter) and lift it out. Then lift out the flat mesh filter underneath. Some models have a single-piece filter — simply lift it straight up after releasing it.
Step 4: Rinse Under Running Water
Hold the filter under warm running water and use your fingers or a soft brush to remove loose debris. Do not use a wire brush or abrasive pad, as this can damage the mesh.
Step 5: Wash with Soap
Apply a small amount of dish soap to the brush or directly to the filter. Gently scrub to remove grease and any stubborn food particles stuck in the mesh. Pay particular attention to the fold lines and edges of the flat filter where debris tends to accumulate.
Step 6: Rinse Thoroughly
Rinse both filter parts under warm running water until all soap and debris are gone and the water runs clear.
Step 7: Check the Filter Housing
While the filter is out, use a damp cloth to wipe out the filter housing area in the base of the dishwasher. Remove any visible food scraps or sludge.
Step 8: Refit the Filter
Place the flat mesh filter back first, then insert the cylindrical filter and rotate it clockwise to lock it in place. Make sure it clicks or seats securely — a loose filter can damage the dishwasher's pump.
Step 9: Run a Maintenance Wash
Once the filter is back in place, run a hot cycle (60–70°C) with a dishwasher cleaning tablet or a cup of white vinegar placed in the bottom rack. This flushes the system and freshens the interior.
How Often Should You Clean the Dishwasher Filter?
| Usage frequency | Recommended filter cleaning interval |
|---|---|
| Daily use (family of 4+) | Every 4 weeks |
| Regular use (2–3 times per week) | Every 6–8 weeks |
| Occasional use (1–2 times per week) | Every 2–3 months |
Signs Your Dishwasher Filter Needs Cleaning
- Dishes have a gritty or filmy residue after washing
- A musty or unpleasant odour when the dishwasher door is opened
- Water pooling in the bottom after the cycle ends
- Longer drain times than usual
Shop Dishwashers at Oceania Appliances
If your dishwasher is beyond cleaning and it's time for an upgrade, visit our Wetherill Park showroom to explore our range of Hisense, Fisher & Paykel, Samsung and Bosch dishwashers, with delivery across all of greater Sydney.
- Showroom: 2/14 Centre Place, Wetherill Park NSW 2164
- Phone / WhatsApp: 0422 489 492
- Email: support@oceaniaappliances.com.au