How to Winterize a Washing Machine

Winterizing your washing machine is essential if you live in a cold climate or plan to store it outdoors during winter. This guide walks you through draining water, cleaning components, and protecting hoses and seals to avoid freezing, cracking, and mold growth.

Key Takeaways

• Drain all water: Remove standing water from the drum, pump, and hoses to prevent freezing and cracking.
• Clean the machine thoroughly: Run a hot cycle with vinegar or a washing machine cleaner to eliminate mold, mildew, and detergent buildup.
• Inspect and disconnect hoses: Check for cracks or wear, and disconnect inlet hoses to avoid water damage.
• Leave the door open: Keep the door or lid slightly ajar to allow airflow and prevent moisture buildup and odors.
• Use a cover or move indoors: Protect the machine from snow, ice, and extreme cold with a breathable cover or relocate it to a heated space.
• Check the drain pump and filter: Clean or remove debris to ensure proper drainage and prevent blockages.
• Test after winter: Before resuming use, inspect all parts and run a test cycle to confirm everything works properly.

Why Winterizing Your Washing Machine Matters

If you live in a region where temperatures drop below freezing—or if your laundry area is unheated, like a garage, basement, or shed—winterizing your washing machine isn’t just a good idea; it’s essential. Water left inside your machine can freeze, expand, and cause serious damage to internal components like hoses, seals, and the drum. This can lead to cracks, leaks, and expensive repairs—or even require a full replacement.

Even if your home stays warm, many people store portable or older washing machines in cold areas during winter months. These machines are especially vulnerable because they’re not designed for year-round indoor use. Without proper preparation, a single freeze can ruin the pump, damage the motor, or cause mold and mildew to grow in stagnant water. Winterizing your washing machine is a simple, cost-effective way to protect your investment and ensure it works perfectly when you need it again.

Think of it like preparing your car for winter—you wouldn’t leave antifreeze out or ignore the battery, right? The same logic applies to your appliances. A little time spent now can save you hundreds of dollars and a lot of frustration later. Plus, winterizing helps maintain your machine’s efficiency and extends its lifespan, so you get more years of reliable service.

When Should You Winterize a Washing Machine?

Knowing when to winterize your washing machine is just as important as knowing how. The timing depends on your climate, where the machine is located, and whether you plan to use it during the colder months.

If you live in an area where temperatures regularly drop below 32°F (0°C), you should winterize your machine before the first freeze. This is especially true if your laundry area is unheated—like a garage, basement, or outdoor shed. Even a brief cold snap can cause water inside the machine to freeze and expand, leading to cracks in hoses or the drum.

For those using their washing machine year-round indoors, winterizing may not be necessary. However, if you’re storing a portable machine, a second unit, or a backup washer during winter, it’s wise to winterize it before putting it away. This applies whether you’re storing it in a cold garage or moving it to a storage unit.

Another scenario is if you’re going on an extended winter vacation and won’t be using your machine for several weeks. In this case, it’s smart to drain and clean the machine to prevent mold and odors from developing in stagnant water.

Ultimately, if there’s any chance your machine will be exposed to freezing temperatures or long-term disuse, winterizing is a smart precaution. It takes less than an hour and can prevent major problems down the line.

Step-by-Step Guide to Draining Your Washing Machine

Draining all water from your washing machine is the most critical step in winterizing. Even small amounts of leftover water can freeze and cause damage. Here’s how to do it safely and thoroughly.

Turn Off the Power and Water Supply

Before you begin, unplug the washing machine from the electrical outlet. This prevents accidental startup or electrical hazards. Next, locate the water supply valves—usually found behind the machine—and turn them off. These valves control the flow of hot and cold water into the machine. Once turned off, disconnect the inlet hoses from the back of the machine. Have a bucket or towels ready to catch any residual water that may drip out.

Drain the Drum and Pump

Most washing machines have a drain hose at the bottom front or back. Place a shallow pan or large bucket beneath it. Then, remove the drain hose cap or plug and let the water flow out. Some machines have a built-in drain pump that can be activated manually—check your user manual for instructions. If your machine has a drain pump filter (common in front-loaders), locate it (usually behind a small access panel at the bottom front), open it slowly, and let any remaining water drain out.

Use the Machine’s Drain Cycle

If your machine has a “drain and spin” or “pump out” cycle, run it with the drum empty. This helps remove water trapped in the pump and hoses. Let the cycle complete fully before proceeding. For top-loading machines, you may need to tilt the machine slightly (with help) to encourage water to flow toward the drain hose.

Manually Remove Remaining Water

Even after draining, small amounts of water may remain in low spots or seals. Use a sponge, towel, or wet/dry vacuum to soak up any leftover moisture. Pay special attention to the door gasket on front-loaders—this rubber seal often traps water. Wipe it dry and leave it slightly open to air out.

Check the Drain Hose for Blockages

While the hose is disconnected, inspect it for kinks, clogs, or damage. Run water through it to ensure it flows freely. A blocked hose can prevent proper drainage and lead to future problems. Clean or replace it if necessary.

Cleaning and Maintaining Internal Components

Draining water is only half the battle. To fully winterize your washing machine, you need to clean it inside and out. Stagnant water and detergent residue can lead to mold, mildew, and unpleasant odors—especially if the machine sits unused for months.

Run a Hot Cleaning Cycle

Fill the drum with hot water and add 2 cups of white vinegar or a commercial washing machine cleaner (like Affresh or Tide Washing Machine Cleaner). Run a full wash cycle on the hottest setting. Vinegar naturally breaks down mineral deposits, soap scum, and bacteria. This step sanitizes the drum, hoses, and pump, leaving your machine fresh and ready for storage.

Clean the Detergent Dispenser and Filter

Remove the detergent drawer and soak it in warm, soapy water. Use an old toothbrush to scrub away residue and buildup. Rinse thoroughly and let it air dry. Next, locate and clean the drain pump filter (if your model has one). This small component catches lint, coins, and debris. Remove it, empty the contents into a trash can, and rinse it under running water. Reinstall it securely.

Wipe Down Seals and Exterior

Use a clean cloth and mild cleaner to wipe the door gasket, drum, and exterior surfaces. Pay special attention to the rubber seal on front-loaders—this area often traps moisture and promotes mold growth. After cleaning, leave the door or lid open to allow airflow and prevent odors.

Check and Clean the Inlet Screens

Inside the water inlet valves, small mesh screens filter out sediment from your water supply. Over time, these can clog and reduce water flow. With the hoses disconnected, use needle-nose pliers or a small brush to remove the screens. Rinse them under water and reinstall them before reconnecting the hoses.

Protecting Hoses, Seals, and External Parts

Even after draining and cleaning, your washing machine’s external components need protection during winter storage. Hoses, seals, and electrical connections are vulnerable to cold, moisture, and pests.

Inspect and Store Hoses Properly

Check both the inlet and drain hoses for cracks, bulges, or wear. Damaged hoses should be replaced before storage. If they’re in good condition, coil them neatly and store them indoors in a dry place. Avoid leaving them exposed to freezing temperatures, as cold can make rubber brittle and prone to cracking.

Protect the Door Seal

The door gasket on front-loading machines is especially prone to mold and cracking if left wet or compressed. After cleaning, leave the door slightly open to allow air circulation. You can also place a small, clean cloth or sponge inside the seal to keep it from sticking shut. Avoid using plastic bags or tight covers that trap moisture.

Cover the Machine (If Storing Outdoors)

If your machine must stay in a cold area, cover it with a breathable, waterproof cover—like a fitted appliance cover or a heavy-duty tarp. Avoid plastic sheets, as they can trap moisture and promote mold. Secure the cover with straps or bungee cords to prevent wind from blowing it off. Make sure the cover doesn’t press tightly against the door, which could damage the seal.

Elevate the Machine Off the Floor

If storing in a garage or basement, place the machine on a wooden pallet or plastic mat to protect it from moisture and pests. This also helps with airflow and prevents rust on the bottom panel.

Consider Moving It Indoors

If possible, the best protection is to move the washing machine to a heated, dry area like a utility room, closet, or basement. This eliminates exposure to freezing temperatures and reduces the risk of damage. If you’re storing a portable machine, this is often the easiest and most effective solution.

Additional Tips for Long-Term Storage

Winterizing isn’t just about the machine itself—it’s also about the environment it’s stored in. A few extra steps can make a big difference in preserving your appliance.

Control Humidity and Temperature

If storing in a garage or shed, try to keep the area as dry and stable as possible. Use a dehumidifier or moisture absorber (like silica gel packs) to reduce humidity. Avoid placing the machine near sources of heat, like furnaces or water heaters, which can cause temperature fluctuations.

Prevent Pest Infestations

Mice and insects are attracted to warm, dark spaces—and your washing machine can be an ideal shelter. Seal any gaps around pipes or vents leading into the storage area. Consider placing natural deterrents like peppermint oil-soaked cotton balls nearby, as rodents dislike the scent.

Label and Document

If you’re storing multiple appliances or tools, label the washing machine with the date it was winterized. This helps you remember when it was last serviced and ensures you don’t forget to prepare it again next year.

Schedule a Spring Checkup

When winter ends, don’t just plug the machine back in and start washing. Reconnect the hoses, turn on the water supply, and run a test cycle with no clothes. Listen for unusual noises and check for leaks. Clean the machine again if needed, and inspect all components before resuming regular use.

Common Mistakes to Avoid

Even with the best intentions, it’s easy to make mistakes when winterizing your washing machine. Avoid these common pitfalls to ensure your machine stays in top condition.

Leaving the Door Closed

One of the biggest mistakes is closing the door or lid tightly after winterizing. This traps moisture inside, creating a breeding ground for mold and mildew. Always leave the door slightly open to allow airflow.

Using Plastic Wrap or Bags

Wrapping the machine in plastic may seem like a good idea, but it traps humidity and can cause condensation. This leads to rust, mold, and unpleasant odors. Use a breathable cover instead.

Skipping the Cleaning Step

Draining water isn’t enough. Skipping the cleaning cycle allows detergent residue and bacteria to build up, leading to odors and potential clogs. Always clean the drum and components before storage.

Forgetting to Turn Off Water Valves

Leaving the water supply on can lead to leaks or flooding if a hose fails during storage. Always turn off and disconnect the water lines.

Storing on a Cold, Damp Floor

Placing the machine directly on a concrete floor in an unheated space can lead to moisture absorption and rust. Elevate it on a pallet or mat to protect the base.

Conclusion

Winterizing your washing machine is a simple but essential task that protects your appliance from freezing, mold, and long-term damage. By draining all water, cleaning internal components, and properly storing hoses and seals, you can ensure your machine stays in excellent condition—even through the harshest winter months.

Whether your machine lives in a heated laundry room or a chilly garage, taking the time to prepare it properly can save you from costly repairs and extend its lifespan. It’s a small investment of time that pays big dividends in reliability and performance.

So before the first frost hits, grab a bucket, some vinegar, and a few towels—and give your washing machine the winter care it deserves. When spring arrives, you’ll be glad you did.

Frequently Asked Questions

Do I need to winterize my washing machine if it’s indoors?

If your washing machine is in a heated, climate-controlled area, winterizing may not be necessary. However, if the room drops below freezing or you won’t use the machine for weeks, it’s still a good idea to drain and clean it.

Can I use bleach to clean my washing machine before winterizing?

It’s not recommended. Bleach can damage rubber seals and internal components over time. White vinegar or a dedicated washing machine cleaner is safer and just as effective at removing mold and buildup.

How long can a washing machine sit unused after winterizing?

A properly winterized machine can sit unused for several months without issues. Just make sure it’s stored in a dry, protected area and inspected before reuse.

What should I do if my washing machine freezes?

Turn off the power and water supply immediately. Allow the machine to thaw completely in a warm room—do not use heat guns or open flames. Once thawed, inspect for cracks or leaks before using.

Can I winterize a portable washing machine?

Yes, portable machines should be winterized the same way—drain all water, clean the drum, and store hoses and the unit in a dry, warm place.

Should I remove the washing machine’s hoses for winter?

Yes, disconnecting the inlet hoses prevents water from freezing in the lines and reduces strain on the machine’s valves. Store hoses indoors if possible.