Is your dishwasher running a full cycle but the dishes are coming out dirty, cloudy, or covered in food residue? A dishwasher that isn’t cleaning properly is one of the most common complaints we hear from Brisbane homeowners — and it’s not always a machine fault. There are several things you can check yourself before calling a technician. If the problem persists, Always Prompt Repairs can diagnose and fix it. Book your dishwasher repair online or call (07) 3062 2377.

DIY Checks Before You Call a Technician

Step 1: Clean the Spray Arms

The spray arms have small holes that direct water jets onto your dishes. Over time, these holes can become blocked with food debris, mineral deposits, and grease. Remove the upper and lower spray arms (they usually twist or clip off), and use a toothpick or fine wire to clear each hole. Rinse the arms under running water and reattach them. Blocked spray arms are one of the most common causes of poor cleaning performance.

Step 2: Check and Clean the Filter

Every dishwasher has a filter at the bottom of the wash cavity — usually a cylindrical mesh filter that twists out. If this filter is clogged with food debris, grease, or broken glass, the dirty water recirculates over your dishes instead of draining away. Remove the filter, clean it thoroughly with warm soapy water and a brush, and make sure it’s seated properly when you put it back.

Step 3: Check Your Detergent and Rinse Aid

Using the wrong detergent, too much detergent, or expired detergent can all affect cleaning performance. Make sure you’re using a detergent designed for dishwashers (not hand-washing liquid — this will cause excessive suds and poor cleaning). Top up the rinse aid dispenser — rinse aid helps water sheet off dishes, preventing spots and cloudy film. Also check that the detergent dispenser door is opening during the cycle — a stuck dispenser means detergent isn’t being released.

Step 4: Check the Water Temperature

Dishwashers need hot water to clean effectively — most cycles require water at 50°C to 65°C. If your hot water system is set too low, or if you’re running the dishwasher while other hot water appliances are in use, the water temperature may be insufficient. Try running the hot tap at the kitchen sink for 30 seconds before starting the dishwasher to ensure hot water is immediately available.

Common Professional Dishwasher Faults

Wash Pump Failure

The wash pump is the component that pressurises water and forces it through the spray arms. If the pump is failing, water pressure drops and dishes don’t get cleaned properly. You might notice the dishwasher sounds quieter than usual during the wash cycle, or that water flow from the spray arms seems weak. A worn or failing wash pump needs professional replacement.

Water Inlet Valve Fault

The water inlet valve controls how much water enters the dishwasher for each cycle. If the valve is partially blocked or failing, the machine won’t fill with enough water to clean effectively. You might notice the water level inside the dishwasher seems lower than normal during a cycle.

Heating Element Fault

The heating element heats the wash water to the correct temperature. If it fails, the dishwasher washes with cold or lukewarm water, which doesn’t dissolve detergent properly or remove grease. Some dishwashers display an error code when the heating element fails; others simply produce poor cleaning results without any warning.

Detergent Dispenser Fault

If the detergent dispenser latch or spring mechanism is broken, the dispenser door may not open during the wash cycle — meaning detergent stays trapped in the dispenser and never reaches your dishes. This is a common fault that’s usually straightforward to repair.

When to Call a Professional

If you’ve cleaned the spray arms, cleared the filter, checked your detergent, and the dishes are still coming out dirty, you’re likely dealing with a mechanical or electrical fault. We repair all major dishwasher brands including Bosch, Miele, Fisher & Paykel, ASKO, LG, Samsung, Westinghouse, Electrolux, and more.

Frequently Asked Questions

Why are my dishes coming out cloudy?

Cloudy dishes are usually caused by hard water mineral deposits or insufficient rinse aid. Check that your rinse aid dispenser is full and set to the correct level. If you have hard water in your area, consider using a dishwasher cleaner monthly to reduce mineral buildup inside the machine.

Why does my dishwasher smell bad?

A smelly dishwasher is usually caused by food debris trapped in the filter, spray arms, or door seal. Clean the filter thoroughly, wipe around the door seal gasket, and run an empty hot cycle with a dishwasher cleaner or a cup of white vinegar to flush out residue.

Should I rinse dishes before loading the dishwasher?

You don’t need to pre-rinse, but you should scrape off large food pieces. Modern dishwashers and detergents are designed to handle normal food residue. Pre-rinsing can actually reduce cleaning performance, as the detergent needs some food residue to activate its enzymes properly.

How often should I clean my dishwasher filter?

Clean the filter at least once a fortnight — weekly if you use the dishwasher daily. A clogged filter is the single most common cause of poor dishwasher cleaning performance, and regular cleaning prevents most issues.

How Much Does It Cost?

Our standard call-out fee is $219, which includes the first 30 minutes of on-site labour and a full diagnostic assessment. If additional time is needed, it’s $45 per 15 minutes thereafter. Parts are quoted separately at the time of repair. We offer a $20 discount for seniors, pensioners, and students. All prices are estimates only — your technician will confirm the final cost before proceeding with any work.

Do You Carry Parts on Your Vans?

Our vans carry a range of common parts and components. For less common or brand-specific parts, we can usually source and fit them within a few business days. Your technician will let you know at the time of diagnosis whether the part is on hand or needs to be ordered.

Book Your Repair Today

Serving Brisbane, Ipswich, Northern Gold Coast, and surrounding areas. Book online or call (07) 3062 2377 — we’ll get it sorted.