Power Surge? No Problem! How to Safely Shield Your Dishwasher

Power surges can pose a significant risk to your dishwasher, potentially causing damage to electrical components, fire hazards, and negatively impacting its performance and lifespan.

To ensure the longevity and proper functioning of your dishwasher, it’s crucial to take proactive measures to protect it from power surges.

To protect your dishwasher from power surges, use surge protectors, consider installing a UPS or whole-house surge protection, ensure proper grounding, and perform regular maintenance.

In this article, we will explore various methods and tips for safeguarding your dishwasher from power surges.

Understanding Power Surges

A power surge refers to a sudden and brief increase in electrical voltage, usually lasting for milliseconds. It can occur due to various reasons, including lightning strikes, utility grid fluctuations, or the operation of high-powered electrical devices in your home.

These surges can severely damage the sensitive electronic components of your dishwasher if not adequately protected.

Read also my article: Overvoltage and Electric Toasters: What You Need to Know.

Risks of Power Surges to Dishwashers

Power surges can have several detrimental effects on your dishwasher:

  1. Damage to electrical components: A power surge can cause immediate or gradual damage to the electrical circuitry of your dishwasher, leading to malfunctions or complete failure.
  2. Potential for fire hazards: In extreme cases, power surges can generate heat and spark within the dishwasher, increasing the risk of electrical fires. This can endanger your home and the safety of its occupants.
  3. Impact on dishwasher performance and lifespan: Even if a power surge doesn’t cause immediate damage, it can gradually degrade the performance and reduce the lifespan of your dishwasher, resulting in costly repairs or premature replacement.

Ways to Protect Your Dishwasher from Power Surges

  1. Surge protectors: Utilizing surge protectors is an effective way to safeguard your dishwasher. These devices act as a barrier, diverting excessive voltage away from your dishwasher. Ensure you choose a surge protector specifically designed for appliances and install it between the dishwasher’s power cord and the electrical outlet.
  2. Uninterruptible Power Supply (UPS): Consider using a UPS for added protection. UPS units not only guard against power surges but also provide battery backup during power outages, allowing your dishwasher to complete its current cycle without interruption.
  3. Whole-house surge protection: Installing a whole-house surge protector at your main electrical panel offers comprehensive protection to all electrical appliances, including your dishwasher. It diverts excess voltage from entering your home’s electrical system, safeguarding all connected devices.
  4. Grounding your dishwasher: Proper grounding is essential to protect your dishwasher from power surges. Ensure that your dishwasher’s electrical connection is correctly grounded by following the manufacturer’s instructions or consulting a qualified electrician.
  5. Regular maintenance and inspections: Conduct routine cleaning and maintenance of your dishwasher to keep it in optimal condition. Additionally, schedule professional inspections to identify any potential electrical issues and ensure timely repairs.

Additional Tips for Dishwasher Protection

Here are some additional tips to enhance the protection of your dishwasher from power surges:

  • Power cycling: Occasionally power cycling your dishwasher, i.e., turning it off and unplugging it for a few minutes, helps reset its electrical components and can mitigate the impact of minor power surges.
  • Unplugging during electrical storms: During severe electrical storms, it’s advisable to unplug your dishwasher to eliminate the risk of power surges caused by lightning strikes or grid fluctuations.
  • Using surge-protected power outlets: Consider using surge-protected power outlets or power strips with built-in surge protection for your dishwasher. This provides an extra layer of defense against power surges.
  • Updating dishwasher firmware and software: Regularly check for firmware and software updates provided by the manufacturer. These updates often include bug fixes and improvements that can enhance your dishwasher’s resilience against power surges.


Protecting your dishwasher from power surges is vital for its longevity and optimal performance. By employing surge protectors, UPS units, whole-house surge protection, proper grounding, regular maintenance, and following additional tips, you can significantly reduce the risks associated with power surges.

Taking proactive measures will ensure that your dishwasher remains safe, reliable, and operates efficiently for years to come.