How Long You Can Store a Refrigerator Without Plugging It In
A refrigerator can sit unused for three to six months without damage, but the exact timeline depends on temperature, humidity, and whether you drain the water lines first
If you're moving, renovating, or simply not using a refrigerator for a while, you don't have to worry about it breaking down immediately. Most refrigerators are built to handle storage periods of several months. The key is understanding what happens inside the unit during that time and taking a few protective steps before you store it away.
The biggest risk isn't the compressor or the cooling system—it's moisture. When a refrigerator sits unused in a warm or humid space, condensation builds up inside the cabinet and can corrode metal parts, damage the insulation, or create mold. The longer it sits, the higher that risk becomes. That's why the steps you take before storage matter more than the storage period itself.
Key Takeaways
- Drain all water from the ice maker line and defrost drain before storing, because standing water will freeze and crack the plastic tubing or corrode metal connections.
- Leave the refrigerator door propped open slightly during storage so air can circulate and prevent mold and mildew from growing inside.
- Store the unit in a climate-controlled space if possible—extreme heat or cold can damage the compressor and seals, and high humidity accelerates rust and corrosion.
- Clean the interior thoroughly and remove all food before storage, then place an open box of baking soda inside to absorb odors.
- Wait at least four hours after moving a refrigerator before plugging it in, because the compressor oil needs time to settle if the unit was transported on its side or at an angle.
Why moisture is the real enemy during storage
When a refrigerator is plugged in, the cooling cycle naturally removes moisture from the air inside the cabinet. The evaporator coil pulls that moisture out, and it drains away through the defrost drain. Once you unplug the unit, that process stops completely. Any moisture already in the air—or moisture that enters when you open the door—stays trapped inside.
In humid climates or during warm months, this condensation can pool on the bottom of the cabinet, soak into the insulation, and eventually corrode the metal frame or create an environment where mold thrives. Even in drier climates, temperature swings between day and night can cause condensation to form on cold metal surfaces inside the unit. That's why leaving the door slightly ajar is so important: it allows air to circulate and prevents moisture from concentrating in one spot.
The defrost drain itself is another moisture concern. If water sits in that line for weeks or months, it can freeze solid (especially if the refrigerator is stored in an unheated space), crack the plastic tubing, or corrode metal fittings. Draining the line before storage takes only a few minutes and prevents a costly repair later.
Steps to prepare your refrigerator for storage
Empty and clean the interior. Remove all food, shelves, and drawers. Wipe down the inside with a damp cloth and mild soap, then dry it thoroughly. Any food residue or spills will attract pests and create odors that are hard to remove later. Once it's dry, place an open box of baking soda on one of the shelves to absorb any odors that develop during storage.
Drain the water lines. If your refrigerator has an ice maker or water dispenser, locate the water supply line (usually behind the unit) and turn off the shut-off valve. Then open the ice maker or water dispenser and let any remaining water drain out. Some models have a small drain plug you can open; others require you to simply run water through the dispenser until it stops. Check your owner's manual for the exact location and method for your model.
Drain the defrost line. This is the small tube that carries condensation away from the evaporator coil. It's usually located at the back of the refrigerator, near the bottom. Use a turkey baster or small syringe to flush the line with warm water, or simply pour warm water down it slowly to clear any blockages. This prevents water from sitting and freezing inside the line.
Leave the door open. Prop the door open with a small wedge or block so air can circulate inside the cabinet. This is one of the most important steps. A door left completely closed traps moisture and creates a breeding ground for mold. You don't need much airflow—just enough to prevent a sealed environment.
The right storage environment matters
Temperature and humidity have a direct impact on how well a refrigerator survives storage. The ideal storage space is cool, dry, and stable—think a climate-controlled garage, basement, or storage unit. Avoid unheated sheds, attics, or outdoor spaces where temperatures swing wildly or humidity spikes during certain seasons.
Extreme cold can damage the compressor and the rubber seals around the door. If the refrigerator is stored in a space that regularly drops below freezing, the oil in the compressor can thicken and cause problems when you try to restart it. Extreme heat does the opposite: it puts stress on the compressor and can warp plastic components. High humidity accelerates rust on metal parts and makes mold growth more likely.
If you must store the refrigerator in a less-than-ideal space, cover it loosely with a breathable cloth (not plastic, which traps moisture) to protect it from dust while still allowing air to circulate. Never seal it in plastic wrap or an airtight cover.
How to restart your refrigerator after storage
Before you plug the refrigerator back in, wait at least four hours—longer if the unit was transported on its side or at an angle. During shipping or moving, the compressor oil can shift out of position. Plugging in the unit too soon can cause the compressor to run without proper lubrication, which damages it. Four hours of rest allows the oil to settle back into place.
Once you're ready to plug it in, do a quick visual check first. Look for any obvious damage, make sure the door seals properly, and confirm that the defrost drain is clear. Then plug it in and let it run empty for 15 to 30 minutes before adding food. This gives the cooling system time to stabilize and removes any odors that may have developed during storage.
If you notice any unusual smells, mold, or water damage inside the cabinet, address those issues before storing food. A thorough cleaning with white vinegar (which kills mold spores) can help, but severe mold growth may require professional restoration.
Storage timeline: what to expect at different intervals
| Storage Period | What to Watch For | Preparation Level Needed |
|---|---|---|
| Up to 1 month | Minimal risk if stored in a stable environment; door left open | Basic cleaning and draining water lines |
| 1 to 3 months | Moisture buildup and odors become more likely; mold risk increases in humid climates | Full preparation: drain all lines, clean thoroughly, leave door open, use baking soda |
| 3 to 6 months | Rust and corrosion on metal parts; mold growth inside cabinet; seal degradation | Climate-controlled storage essential; check monthly for moisture or mold |
| Beyond 6 months | Significant risk of permanent damage; compressor seals may dry out and crack | Not recommended unless unit is in ideal conditions; professional inspection before restart |
These timelines assume the refrigerator is stored in a reasonably stable environment with moderate temperature and humidity. Storage in a hot attic or damp basement will shorten these windows significantly.
Common mistakes that damage refrigerators in storage
Sealing the door completely. This is the most common mistake. People think a sealed door protects the interior, but it actually traps moisture and creates perfect conditions for mold. Always leave the door slightly open.
Storing the unit in direct sunlight or extreme heat. The compressor and seals are not designed to handle prolonged exposure to high temperatures. If you must store outdoors temporarily, cover the unit with a shade cloth or tarp to block direct sun.
Forgetting to drain the water lines. Ice maker lines and defrost drains hold water that will freeze or corrode if left sitting. This is a quick task that prevents expensive repairs. Don't skip it, even for short storage periods.
Plugging in the unit immediately after moving it. The four-hour wait is not optional if the refrigerator was transported horizontally or at an angle. Ignoring this step can permanently damage the compressor.
Frequently Asked Questions
Can I store a refrigerator on its side or back?
Avoid it if possible. Storing a refrigerator on its side or back can cause compressor oil to flow into the cooling lines, which damages the system. If you must transport it that way, keep it upright for at least four hours (ideally 24 hours) before plugging it in. Never store it on its side for weeks or months.
What if mold starts growing inside during storage?
Stop storage immediately and clean the interior with a solution of equal parts white vinegar and water. Wipe down all surfaces, including the seals and corners where mold likes to hide. Leave the door open and place the refrigerator in a warm, dry space for a few days to dry out completely. If mold returns, the unit may have moisture trapped in the insulation and should be inspected by a professional before use.
Do I need to cover the refrigerator while it's stored?
A loose, breathable cloth cover protects the exterior from dust without trapping moisture inside. Never use plastic wrap or airtight covers. If you're storing it in a clean, dust-free space like a climate-controlled storage unit, a cover is optional.
How often should I check on a refrigerator during storage?
Check it at least once a month, especially if it's stored in a humid or temperature-variable space. Look for signs of moisture, mold, or pest damage. If you notice condensation pooling inside, increase ventilation by opening the door wider or moving the unit to a drier location.
Can I store a refrigerator in an unheated garage during winter?
It depends on how cold it gets. If temperatures stay above 50°F, it's generally safe. Below that, the compressor oil can thicken and cause problems when you restart the unit. If your garage regularly drops below freezing, store the refrigerator elsewhere or wait until spring to put it into storage.