Do not turn on any electronics or appliances that have been exposed to water. That’s the most important thing to understand about electronics and water damage — and the one instruction that gets ignored most often. A wet electronic device that is powered off has a chance of recovery. The same device powered on while wet almost always suffers permanent damage from short circuits that destroy components that might otherwise have survived.
The outcome for electronics and appliances after water damage ranges from full recovery to total loss depending on what the device is, how much water contact occurred, what category the water was, and how quickly it was addressed. The determining factor you control is whether you powered it on before a professional assessed it. The determining factor you don’t control is how long it sat wet before it was found.
Call 303-816-0068 immediately after water damage. Getting electronics documented, unplugged where safe, and assessed quickly protects both the devices and your insurance claim.
Why Water and Electronics Don’t Mix — And Why Some Recover
Electronics fail from water contact through two mechanisms: immediate short circuit damage when power is present, and corrosion damage that develops over hours and days as minerals and contaminants in the water react with metal components.
Short circuit damage is irreversible. When a powered circuit gets wet, current flows through paths it’s not designed for, components overheat, and circuit board traces and components burn out. This is why powering on a wet device is so damaging — you’re completing the circuit through the water contamination and causing the failure yourself rather than waiting to see what the water alone did.
Corrosion is a slower process but can be just as damaging. Water — especially anything other than distilled water — leaves mineral deposits and contaminants on circuit boards and metal contacts as it evaporates. Those deposits cause corrosion that progressively damages components over days and weeks. What can happen is a device that survived the initial water contact well only to fail months later from corrosion that developed and spread after the event.
The reason some electronics recover from water damage is that water itself isn’t the direct cause of failure — it’s the combination of water and electricity, or water and time. A device that was unpowered when it got wet, was quickly removed from the water, was properly dried before power was applied, and had clean water contact has a genuine chance of recovery.
Category of Water Matters for Electronics
The category of water that contacted electronics affects both the recovery potential and the approach.
Category 1 clean water from a supply line or potable source leaves the least residue as it evaporates. Electronics from a Category 1 event have the best recovery potential if they were unpowered and drying was prompt.
Category 2 gray water from appliance discharge introduces minerals, detergents, and organic material that deposit on circuit boards and contacts as the water evaporates. The contamination residue from gray water is more damaging to electronics than clean water residue, and professional cleaning of affected boards is more important.
Category 3 black water from sewage or floodwater introduces biological contamination and heavy mineral and chemical loads that make electronics recovery much less likely. Beyond the corrosion concern, the contamination on circuit boards from Category 3 water creates ongoing degradation. Electronics submerged in Category 3 water are typically replaced rather than restored.
What Happens With Different Types of Electronics
Televisions and monitors — Flat screen televisions and monitors contain display panels that are damaged by direct water contact regardless of power status. The liquid crystal or OLED layers in modern displays don’t recover from water intrusion. External components — circuit boards, power supplies — may be serviceable, but display panel replacement typically costs more than the device. A TV that was splashed or had minor water exposure around the edges is a different assessment than one that was submerged or had water inside the cabinet.
Computers and laptops — Desktop computer components that were unpowered during water contact and dried properly before being powered on have reasonable recovery rates for the circuit boards themselves. Hard drives are more vulnerable — water inside a hard drive can damage the platters and the read/write heads. Data recovery from a water-damaged hard drive requires a professional data recovery service, not a drying attempt. Laptops with their compact construction and integrated components are harder to dry and clean effectively than desktop components.
Small appliances — Kitchen appliances, small electronics, and similar items from a clean water event can often be dried and assessed for function. The key is unplugging them immediately, not attempting to operate them until thoroughly dry, and having them assessed before use. Small appliances from Category 3 water contact are replaced — the contamination concern makes restoration impractical for items used with food or in personal care.
Large appliances are one of the more nuanced categories in water damage contents assessment.
Large Appliances — A Closer Look
Refrigerators, dishwashers, washing machines, dryers, ranges, and HVAC equipment are significant insurance claim items, and the decisions about them involve both the functional electronics and the mechanical components.
Refrigerators that experienced flooding to the level of electronic controls — typically on the back of the unit or on the door — need assessment of those controls before operation. Compressors and sealed system components that were submerged need evaluation by an appliance technician. A refrigerator that had water exposure below the level of electronic components and ran continuously may have survived fine. One that lost power during the event, had water enter the control boards, and sat powered off needs assessment before being restarted.
Washing machines and dryers are designed to handle water on their internal components to some degree, but flooding that submerges the control panels and electronic components is a different situation than normal operating moisture. Dryers with gas connections need inspection of the gas valve and burner assembly after any flood event.
HVAC equipment — furnaces, air handlers, heat pumps — contains electronic controls and in the case of furnaces, gas controls and heat exchangers. An HVAC technician assessment is appropriate for any HVAC equipment that was submerged or had water contact with controls. This is not a self-assess-and-restart situation.
Ranges and ovens — Gas ranges with electronic ignition need assessment before operation after water contact. Electric ranges need inspection before being powered on.
A common thing seen in the industry is homeowners restarting appliances without assessment after a water event because the appliances look fine and the homeowner needs them functioning. Some of those restarts are fine. Some result in equipment failures, electrical hazards, or in the case of gas appliances, safety concerns. The appliance assessment is worth the cost.
The Corrosion Timeline
Understanding when corrosion becomes irreversible helps explain why response time matters so much for electronics.
In the first few hours after water contact, corrosion is minimal. Clean water evaporating from circuit boards leaves relatively little residue. This is the window where professional cleaning and drying has the best outcome.
After 24 hours, corrosion processes are actively underway on metal contacts and board traces. Professional ultrasonic cleaning can remove corrosion products and contaminants at this stage and restore many components to function, but the success rate is lower than in the first hours.
After 48 to 72 hours, significant corrosion has developed on many components. The window for recovery has narrowed substantially. Some devices that seemed fine in the first day begin showing failures as corrosion spreads.
What I’ve seen happen is electronics that were unplugged, appeared undamaged, and were set aside to dry naturally that failed weeks or months later as corrosion that developed in the first days continued spreading through the circuit boards. Proper professional drying and cleaning — not just sitting in a dry room — is what stops that progression.
Documentation and Insurance
Electronics are a significant portion of most home contents insurance claims. A $65,000 water damage loss can include $10,000 to $20,000 in electronics and appliances depending on the home.
Proper documentation starts with photographing all affected electronics in their affected condition before anything is moved or unplugged. Serial numbers and model numbers should be documented. Purchase records, credit card statements, and receipts establish pre-loss value.
For electronics that are assessed and determined non-functional, documentation of the assessment — what was tested, what the result was — supports the replacement claim. For electronics that were powered on before assessment and suffered short circuit damage, the insurance implication depends on whether that action was reasonable given the circumstances. What I’ve seen happen is coverage questions raised when a homeowner powered on equipment against the adjuster’s recommendation or before assessment — the avoidable damage argument can affect claim settlement.
We inventory and document every electronic and appliance item in the affected area, coordinate with appliance and electronics technicians for assessment, and include complete documentation in the insurance claim file.
The IICRC S500 Standard governing water damage restoration decisions including contents is at https://www.iicrc.org/page/IICRCStandards.
Call 303-816-0068 any time. We respond immediately to water damage in Lakewood, Pine, Conifer, Evergreen, Bailey, and the surrounding mountain communities — 24 hours a day. Do not power on wet electronics — call us first and we’ll assess what you have before any power is applied.
