The short answer
Why a Flooded Microwave Is Dangerous
Water conducts electricity. If water has seeped into the microwave's wiring, magnetron, or control panel, turning it on can cause a short circuit. That can lead to sparks, arcing, or even an electrical fire. The risk stays even after the outside feels dry, because moisture hides inside the unit.
Floodwater may also carry mud, debris, or chemicals. Those contaminants can corrode metal parts and leave conductive residues that cause problems later. If the microwave was submerged, assume the internal components are compromised. Do not plug it in or test it. Your safety comes before saving the appliance.
- Unplug the microwave immediately if it is safe to do so.
- Do not turn it on or press any buttons.
- Keep children and pets away from the appliance.
- Do not attempt to open the casing or repair it yourself.
- Dry the outside with a cloth, but do not rely on that as a fix.
Can You Dry It Out and Use It Later
Drying the microwave on the outside does not remove water trapped inside the electrical parts. Even if you leave it for days or weeks, moisture can linger in sealed areas. Corrosion can start right away, and dried mud or residue can still conduct electricity. The internal damage is often invisible from the outside.
A professional appliance repair person can open the unit, inspect for corrosion, and test the components safely. They might replace damaged parts, but in many cases the cost of repair is not worth it. If the microwave is old or the floodwater was dirty, replacement is often the safer and more practical choice.
What to Do with a Flooded Microwave
First, make sure the power is off at the circuit breaker if you cannot safely reach the plug. Then, move the microwave to a dry, well-ventilated area if you can. Do not use it. If you have flood insurance or homeowners insurance, check your policy to see if the appliance is covered. Policies vary, and your insurer decides what is covered.
If you decide to dispose of it, check local rules for electronic waste. Many communities have drop-off sites for appliances. If you plan to keep it for inspection, label it clearly so nobody plugs it in by mistake. A qualified appliance repair professional can give you a straight answer about whether it is worth fixing.
When to Call Water Damage Pros
A flooded microwave is often just one part of a larger water damage situation. If floodwater affected your kitchen, walls, or floors, you need more than appliance advice. Water can soak into cabinets, drywall, and subfloors, creating conditions for mold and structural damage. Acting quickly helps limit the harm.
Local water damage pros can handle the bigger picture. They can extract standing water, dry out the structure, and check for hidden moisture. If your home has experienced flooding, it helps to have a plan. The pros can also document the damage for your insurance claim.
- Turn off power to the affected area at the breaker.
- Remove standing water if you can do so safely.
- Take photos of the microwave and the flooded area.
- Keep receipts for any replacement items.
- Contact your insurance company to report the damage.
- Call a water damage professional for an assessment.
How to Prevent Future Flood Damage
Flooding often comes from heavy rain, burst pipes, or appliance leaks. You can reduce the risk by checking hoses and seals on appliances regularly. Keep the area around your microwave and other electronics clear of water sources. If you live in an area with frequent storms, consider elevating appliances off the floor.
A water damage inspection can identify weak points in your home, such as leaky pipes or poor drainage. The pros can also install flood barriers or sandbagging if your home is prone to flooding. Being proactive is cheaper than dealing with the aftermath. For now, keep that microwave unplugged and stay safe.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (425) 407-5186Frequently asked questions
How long does a microwave need to dry before it is safe?
There is no set time that makes a flooded microwave safe. Moisture can stay trapped inside for weeks. Drying the outside does not help. Only a professional inspection can determine if the internal parts are safe. In most cases, replacement is the safer option.
Can I use a microwave that got slightly wet on the outside?
If only the outside got wet and the inside is completely dry, you might be okay, but you should still be careful. Wipe it dry and wait at least 24 hours. If any water entered the vents or seams, treat it like a flooded unit and do not use it.
What should I do if I already turned it on?
If you turned on a flooded microwave and it sparked, smelled like burning, or made strange noises, turn it off and unplug it immediately. If you feel unwell, see a doctor. Then, have a professional inspect it. Do not try to use it again until you get a clear answer.