How to Maintain Your Dishwasher for Long-Term Performance
A well-maintained dishwasher can last 10–15 years and keep your dishes sparkling clean the whole time. Neglect it, and you'll face poor cleaning, bad smells and costly repairs. Here's your complete maintenance guide.
Monthly Maintenance Tasks
1. Clean the Filter
Most modern dishwashers have a removable filter at the bottom of the tub. Remove it monthly, rinse under warm water and use a soft brush to remove food particles. A clogged filter is the most common reason for poor cleaning performance.
How to find it: Look for a cylindrical component in the bottom of the dishwasher tub, usually in the centre or one corner. Twist to remove.
2. Wipe Down the Door Seal
The rubber seal around the door can collect food residue and develop mould. Wipe it down monthly with a damp cloth. Use a toothbrush for tight crevices.
3. Run a Cleaning Cycle
Use a dishwasher cleaner (like Finish Dishwasher Cleaner) or a cup of white vinegar placed upright in the top rack. Run on a hot cycle (60°C+) with no dishes inside to clean the interior, spray arms and drain system.
Quarterly Maintenance Tasks
4. Check and Clean the Spray Arms
Remove the spray arms (usually unscrew or unclip) and check the small holes for blockages. Use a toothpick or small brush to clear any blocked holes. Run water through them to test flow. Blocked spray arms cause uneven cleaning.
5. Clean the Door Interior
Wipe down the inside of the door, especially the bottom edge where water pools, with a damp cloth. This area often collects food and grease.
Tips for Better Performance Every Day
- Scrape, don't rinse: Modern dishwashers are designed for dirty dishes. Scrape off large food scraps but don't pre-rinse — the detergent actually needs some grease to work effectively.
- Use the right detergent: Dishwasher tablets are more effective than powder for most loads. Use a reputable brand.
- Add rinse aid: Rinse aid prevents water spots and helps dishes dry faster. Keep the rinse aid dispenser topped up.
- Use the right water temperature: Hot wash cycles (65°C) are more effective at removing grease and killing bacteria.
- Don't overload: Items need space for water and spray to reach them. Overloading causes poor cleaning results.
- Load properly: Cups and glasses face down on the top rack. Pots and pans go on the bottom, tilted to allow water drainage.
Signs Your Dishwasher Needs Attention
- Dishes coming out dirty or with residue
- Bad smell after running a cycle
- Water pooling at the bottom
- Error codes on the display
- Door not sealing properly
If basic maintenance doesn't resolve these issues, it may be time for professional service or a replacement. We carry a wide range of dishwashers with free Sydney delivery.
Showroom: 2/14 Centre Place, Wetherill Park — open 7 days, 10am to 8pm
Phone: 0493 142 999