Can You Fix a Dishwasher by Yourself

The average lifespan of a dishwasher is about 10 years, but issues can arise as early as the fifth year. If your dishwasher breaks down, it’s always best to call a professional technician. However, some common malfunctions can be repaired on your own.

In this article, we’ll discuss the most suitable DIY repairs for common dishwasher problems. Please note: If you’re not experienced or lack the necessary skills to follow this guide, it’s best to call a professional.

Additionally, never attempt to repair an electrical appliance while it is still plugged in. For safety, always unplug your dishwasher before starting any repairs and work with another person if you need to tilt or move the machine.

Problem 1: Your Dishwasher is Not Cleaning the Dishes

Dishwashers automate the cleaning of dishware, cookware, and cutlery, so it’s frustrating when your dishes come out dirty with food particles stuck on them. This is a common issue, and there are logical reasons behind it.

Reason: Blocked Filter

A clogged filter is the most common cause of poor cleaning. The dishwasher filter protects the pump from food particles, but if not cleaned regularly, it becomes clogged with debris, causing dirty water to recirculate onto your dishes.

Solution:

Cleaning the filter is simple. The filter is usually located at the bottom of the dishwasher and should be cleaned once a week.

Unplug the dishwasher from the power source, remove the filter and rinse it under running water to remove food residues. If necessary, soak the filter in warm, soapy water to remove stubborn build-up. Please be careful not to damage the filter mesh while cleaning.

Reason: Overloading

Overloading your dishwasher can prevent water from circulating properly, resulting in poor cleaning performance.

Solution:

While it may be tempting to fit all dishes into one load, consider splitting large loads into two cycles.

Reason: Incorrect Wash Cycle

For effective cleaning, the water temperature in your dishwasher should reach at least 65°C.

Solution:

Make sure you’re using the correct wash cycle, especially when dealing with tough stains or greasy dishes.

Problem 2: The Dishwasher Does Not Start

If your dishwasher has power but won’t start a cycle, here’s what you should check first:

Reason: The Door is Not Completely Closed

Modern dishwashers are designed to stop functioning if the door is not fully closed.

Solution:

Ensure that the door is shut properly before starting the cycle.

Some models also have a child lock feature to prevent accidental operation. If your dishwasher has a child lock enabled, you’ll need to disable it. The button is usually marked with a padlock or key symbol. If you can’t find it, try resetting the dishwasher by unplugging it for one minute and then plugging it back in.

Reason: A Faulty Component

If your dishwasher still won’t start, a faulty part may be the issue.

Solution:

In this case, it’s best to call a service technician who can diagnose and replace the defective component.

Problem 3: Your Dishwasher Smells Bad

Your dishwasher is supposed to clean your dishes, so it definitely shouldn’t smell musty or like sewage. Unfortunately, this is a common problem with all dishwasher brands.

Reason: Mould or Mildew Build-up

Mould and mildew can grow inside a dishwasher, especially if the door is left closed for long periods. The combination of moisture and food particles creates the perfect environment for bacteria and fungi to thrive.

Solution:

Deep cleaning your dishwasher can eliminate bad odours. You can use either commercial dishwasher cleaner or white vinegar.

• Using a Commercial Cleaner: Ensure the product is compatible with your dishwasher and follow the manufacturer’s instructions.
• Using White Vinegar: Empty the dishwasher and place a cup (about 250 ml) of white vinegar on the bottom rack, then run the cleaning cycle.

After the cycle, leave the dishwasher door open to allow moisture to escape.

Problem 4: Dishwasher Displays an Error Code

Modern dishwashers come with self-diagnostic systems that display error codes when an issue is detected. Older dishwasher models may not have a digital display but will instead use blinking lights to indicate an error.

Reason:

If you see a code consisting of numbers and letters on the display, it means there’s a problem with your machine.

Solution:

Error codes vary between manufacturers and models, so their meanings differ. To find out what a specific error code means, visit the ‘Manufacturers’ section on our website and look for your dishwasher’s make and model.

While error codes can help diagnose problems, some issues may require professional assistance. If you’re unsure how to proceed, feel free to give us a call – we’re happy to help!