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Cockroaches are common household pests that can survive harsh conditions.

This aspect makes them very challenging to completely get rid of them.

Aside from looking for food, these pests may come in your home in search of habitat.

The roaches love warm, moist, dark, and hidden areas to reproduce and thrive.

While you may love your appliances, unfortunately, they are ideal living areas for these insects.

Once the pests get access to your home, the infestation to any other electronic devices like a game console, router, or television is almost inevitable.

Cockroach infested appliances are arguably the primary cause of the spread of this infestation.

Furthermore, the bugs urine and feces can damage the electronics, though rarely.

If you are sure that your devices may be infested, you need to respond fast to prevent more food contamination and possible diseases.

Continue reading to find out how to rid cockroaches from appliances.

Common causes of cockroach infestations

People hate roaches for a good reason. Just their disgusting sight is enough to make you run for your broom and crush it.

And while they are usually associated with unsanitary conditions, especially the German cockroaches, you are likely to get them even in the cleanest home.

Getting rid of these insects is a severe headache for homeowners.

However, it is crucial to understand what brings the roaches in the first place to prevent the infestation from happening. See what attracts these nagging insects.

  • Exposed Food — It is not limited to leftover food in the kitchen sink or dining table since roaches are scavengers and can eat anything. They feed on starches, sweets, meat, shredded skin, fallen hair, books, and other organic matter. Therefore, food smudges and messy, cluttered rooms are the ideal places for these pests.
  • Overflowing Waste Bin — In this situation, one man’s trash is roaches treasure. Even if your house is clean internally, but the garbage bin is overflowing outside, it is likely to attract pests. The odor from the trash gets picked by roaches through the sensory neurons in the antennae.
  • Water Sources — Although roaches don’t require frequent re-hydration, water is still a necessity for their survival. If your house has unlimited water sources, including wet bathroom floors, leaky pipes, and moist under-sink, you are likely to get an infestation.
  • Crevices, Holes, Cracks and Hiding Spaces — Cockroaches feature a flexible exoskeleton that allows them to flatten their body and fit in tight spaces. Any cracks and holes on your walls, conduits, window frames and pipes provide easy access to roaches and other pests.
  • Neighbors — Unfortunately, if your neighbor has a cockroach infestation, it can quickly spread to your home through shared walls or pipes. Ask building management to provide a routine pest control of the whole building.

How cockroaches get into appliances

Cockroaches have been able to survive for years because they need very little to survive.

When roaches get access to your home, the kitchen and kitchen appliances provide the best hideout for reproduction.

Since these areas mainly handle foodstuff, you can’t spray them liberally with insecticides due to the poison’s potential health risks.

This consideration makes removing the roaches from the appliances even tricky.

Cockroaches usually look for warm and secluded areas that are close to water and food sources.

Electronics provide such environments, primarily since they produce heat.

Hence, they are an ideal nesting place to lay their eggs.

What is more is that the devices are easily portable, allowing the infestation to move to another area.

It means that you are likely to purchase an infested new appliance from an infested store.

When it comes to accessing the appliances, these insects use their flexible exoskeleton body to get into the devices through available little openings.

From inside the gadgets, the roaches can transmit various illnesses and allergies and even cause your appliance to stop working.

For these reasons, it is essential to eliminate cockroaches from your home, especially the kitchen.

Problems cockroaches cause with appliances

Have you ever wondered why your favorite appliance stopped working? There is a chance that the culprits are the roaches.

They can hide in the circuit boards and damage electrical wires, thereby resulting in the device not working.

Most affected appliances are rice maker, fridge, sandwich maker, microwave, toaster, coffee maker, juicer, mixer grinder, and many more.

The roach infestation on the electronics also causes an unpleasant odor that can transfer to other areas.

Microwave and toaster retain heat after their use. Besides, the fallen crumbs provide ready food for the roaches.

With infestation on these appliances, the food prepared can also have that unpleasant smell.

How to get cockroaches out of appliances

Before starting to spray your house with insecticides to get rid of the roaches, you have to strategize.

It goes a long way in determining the success of the process.

For that to happen, let’s go back to the basic things that these insects need; food, warm shelter, and water.

Roaches use appliances as a refuge during general extermination projects and come out once the insecticides become ineffective.

Although you might be desperate to get rid of the bugs, do not spray the pesticides directly on the devices for two reasons:

  • The poison can come in contact with food, causing poisoning.
  • The solvents can gnaw at parts, dissolve electrical wires, and make inroads in the motor’s housing. Such vandalism can potentially damage the motor of the machine.

Here are the steps to follow for the effective removal of cockroaches from devices.


First, you have to look for signs of infestations in your electronics and home.

It helps in determining the extent of the infestation and the measures to place.

Check in the port areas and openings of your gadgets where these insects may get inside.

Look for roach droppings that appear like black pepper usually scattered under the power supply and inside the electronics.

Furthermore, be on the lookout for the live and dead roaches in the item.


Once you have established that your home is infested with roaches, the best practical method to tackle this problem is through premium quality pesticides.

You may find it beneficial to combine residual spray insecticide and attractive gel bait to protect your appliances from further damage.

You should always consult a pest industry professional before attempting this method, however, to ensure it is safe and appropriate for your use.

Gel Bait Placement

Cockroach gel bait contains components that roaches cannot resist. It is a slow killing bait that provides time for the roaches to ingest them and return to their nest.

The bait allows the spreading of the poison to the rest of the population.

Just place a peas-size amount of gel bait on a card near the electronic gadget. The card provides for easy cleanup and application.

However, ensure that it is out of sight of both pets and children.

Also, apply this gel in cracks, crevices, and holes in cabinets, cupboard, under fridge, pantries, shelves, toilets, and other common areas.

You will notice a reduction in activity in 3-5 days.

Replenish the gel bait after one or two weeks until the roaches are entirely gone.

Residual Spray

Choose an insecticide specified for cockroaches, measure, and mix accordingly.

Apply the mixture in the following locations in your home:

  • In cracks and crevices
  • Around window and door frames
  • Under appliances
  • Along baseboards
  • In utility cables and pipes

Be careful not to spray the exact area that you had placed the bait to avoid contaminating it.

Remember to reapply the insecticide as instructed in the label.

Freezing Them Out

Roaches don’t do well in cold conditions. They tend to die fast when exposed to low-temperature conditions.

You can use this factor to your advantage and freeze the bugs in your device.

However, confirm that the gadget can withstand the low temperatures for 3-5 days.

Furthermore, if the appliance cannot fit in the freezer, you can leave it outside during winter.

When using the treatment technique to get rid of roaches from your device, ensure to seal it in a plastic bag first.

After 3-5 days, they would have all died, return the device indoors and dry it thoroughly before using.

Step 4: Blowing

Another way on how to get rid of cockroaches from appliances is through blowing.

For this, you can use a can with compressed air and thin spay tip to produce more force when blowing.

Take the infested device outdoors and blow away the alive roaches, feces, eggs, and dead remains.

You will be disgusted at how filthy the roach infestation can get. Once all the filth is out, apply the preventive measure to deter the pests.

Step 5: Clean Up

Once you are sure that your device is free of bugs, it is time to clean it thoroughly.

Just unplug it from the power source, open it with a screwdriver and clean all the roach remains, feces and eggs.

Use soft fabric and brush to do the cleaning. Be sure that opening the gadget will not compromise the product’s warranty.

Final thoughts

Cockroaches are a nuisance and resilient in surviving even the roughest conditions.

Therefore, you should get rid of them from your home before harming your health or appliances.

Always consult a pest control professional to learn more about how you should handle or prevent a cockroach infestation.