Why Are My Dishwasher Lights Flashing?

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A dishwasher is one of those appliances we often take for granted—until something goes wrong. One common issue many homeowners face is flashing lights on their dishwasher, often accompanied by confusion and frustration. As the owner of Appliance Repairs Centre, with over 38 years of experience in fixing dishwashers and other household appliances, I’ve seen this problem countless times. Flashing lights may seem intimidating, but they are usually an indicator of something that can be easily resolved.

When the lights on your dishwasher start flashing, the appliance is trying to tell you something. Whether it’s an error code, a problem with the cycle, or an internal malfunction, those flashing lights are a sign that your dishwasher needs some attention. In this article, we’ll take a closer look at why dishwasher lights flash, what these signals typically mean, and how you can fix them before calling a professional.

Common Reasons for Flashing Lights on Your Dishwasher

1. Error Codes and What They Mean

One of the most common reasons dishwasher lights flash is due to an error code. Manufacturers design dishwashers to display flashing lights to indicate various issues, ranging from water supply problems to electrical faults. These error codes are often specific to the make and model of your dishwasher.

How to Fix It:

Consult your dishwasher’s user manual for a guide to the error codes. Most manuals will provide a breakdown of what each flashing light combination represents. Once you know the error code, you can either reset the dishwasher or address the problem. In many cases, resetting the dishwasher by turning off the power for a few minutes and then turning it back on can resolve the issue. However, if the error persists, the underlying problem will need to be addressed by a professional.

2. Water Supply Issues

If your dishwasher lights are flashing, it could indicate a problem with the water supply. Dishwashers need a consistent supply of water to function properly. If there’s a blockage in the water inlet valve or the water pressure is too low, your dishwasher might not fill with enough water, causing the lights to flash as an alert.

How to Fix It:

Check the water supply to your dishwasher. Ensure that the valve supplying water to the appliance is fully open and that there are no kinks or blockages in the hose. If the water pressure is too low, you may need to have it checked by a plumber. Cleaning the water inlet valve may also solve the issue if there’s a blockage.

3. Door Not Properly Latched

Believe it or not, something as simple as the door not being fully closed can cause the lights on your dishwasher to flash. Most dishwashers have safety mechanisms that prevent them from running if the door isn’t latched properly. This is to avoid water leakage or incomplete cycles. If the door sensor detects that the door is open or not fully locked, it will trigger flashing lights as an alert.

How to Fix It:

Open and close the dishwasher door to ensure it is securely latched. If the door latch is faulty or damaged, it may need to be replaced. This is a relatively simple fix but may require the expertise of a technician to avoid damaging any other components.

4. Electrical or Control Board Issues

Flashing lights can sometimes be a sign of an electrical issue within the dishwasher. A malfunctioning control board, wiring problem, or fuse can cause the dishwasher to display error lights or malfunction during its cycle. Electrical issues are usually a bit more complex to diagnose and should be handled by a professional.

How to Fix It:

If you suspect an electrical fault, it’s best not to attempt repairs on your own. Dishwashers are intricate appliances, and electrical repairs require the right skills and tools. At Appliance Repairs Centre, our certified technicians are trained to identify and resolve electrical issues safely.

5. Overheating or Temperature Issues

Dishwashers use heated water to clean dishes thoroughly. If there’s an issue with the heating element or the water temperature sensor, your dishwasher may flash lights as an error signal. This can happen if the water gets too hot or if the heating element fails to warm the water sufficiently.

How to Fix It:

If you suspect that your dishwasher is flashing lights due to a temperature issue, you’ll need to inspect the heating element or thermostat. These components are essential for ensuring the water reaches the correct temperature for cleaning. A faulty heating element will likely need to be replaced by a professional.

Should You Attempt to Fix the Flashing Lights Yourself?

While some causes of flashing lights can be easily fixed at home, like checking the water supply or ensuring the door is properly latched, other issues may require professional assistance. Dishwashers are complex appliances with many components, and attempting to repair electrical or mechanical problems without the right knowledge can result in further damage.

At Appliance Repairs Centre, we’ve seen it all. Whether it’s a water supply issue, a malfunctioning control board, or a simple door latch problem, we have the expertise to diagnose and repair your dishwasher quickly and effectively. With free callouts and quotes, you’ll know exactly what needs to be done before any work begins.

FAQ

1. Can I reset my dishwasher to stop the flashing lights?

Yes, you can try resetting your dishwasher to stop the flashing lights. To reset most dishwashers, turn off the power for a few minutes and then turn it back on. If the lights continue to flash, it’s likely that an underlying issue still needs to be addressed, such as a water supply problem or an error code.

2. What should I do if my dishwasher door won’t latch properly?

If your dishwasher door won’t latch, the first step is to inspect the door for any obstructions, such as food debris or damage. If the latch itself is broken, it will need to be replaced. A faulty door latch can be fixed relatively quickly by a technician and may prevent more significant problems like leaks.

3. Are flashing lights a sign that my dishwasher needs to be replaced?

Not necessarily. Flashing lights are often an indication that something needs to be fixed, but it doesn’t mean the entire appliance is beyond repair. Many issues, such as error codes or water supply problems, can be resolved without needing to replace the dishwasher. However, if the appliance is very old or if the cost of repairs is too high, it might be worth considering a replacement.

Conclusion: Trust Appliance Repairs Centre for All Your Dishwasher Repair Needs

If your dishwasher’s lights are flashing, don’t ignore the issue. While some problems can be fixed with simple troubleshooting, others may require the help of a professional. Appliance Repairs Centre has over 38 years of experience in diagnosing and repairing dishwashers, from minor issues to complex electrical faults.

Our certified technicians are available 24/7 to provide fast, reliable service in Pretoria, Centurion, and Midrand. With free callouts and quotations, you can trust us to get your dishwasher back to working condition without any hidden costs.