How to Descale a Washing Machine
Learn how to descale a washing machine to remove limescale, improve cleaning performance, and extend appliance life. Follow these simple descaling steps.
APPLIANCE CARE
6/14/20263 min read
Over time, minerals from hard water can build up inside your washing machine. This buildup, known as limescale, can affect cleaning performance, increase energy consumption, and shorten the lifespan of your appliance.
Regular descaling helps keep your washer running efficiently and prevents costly repairs. Fortunately, descaling a washing machine is a simple maintenance task that most homeowners can do themselves.
In this guide, you'll learn how to descale a washing machine safely and effectively.
What Is Limescale?
Limescale is a chalky white deposit made primarily of calcium and magnesium minerals found in hard water.
As water passes through your washing machine, these minerals can accumulate on:
The drum
Heating elements
Water hoses
Internal pipes
Detergent dispensers
Over time, limescale can reduce efficiency and lead to operational problems.
Signs Your Washing Machine Needs Descaling
You may need to descale your washer if you notice:
White residue inside the drum
Musty or unpleasant odors
Clothes not feeling completely clean
Longer wash cycles
Reduced water flow
Higher energy consumption
Visible mineral buildup around dispensers
Regular descaling helps prevent these issues.
Benefits of Descaling a Washing Machine
Removing limescale offers several advantages:
Improves washing performance
Eliminates odors
Increases energy efficiency
Extends appliance lifespan
Protects heating elements
Reduces maintenance costs
A clean machine also helps keep your laundry fresher.
What You'll Need
Before starting, gather the following supplies:
Washing machine descaler or white vinegar
Soft cloth or sponge
Old toothbrush
Warm water
Microfiber towel
Always check your owner's manual before using homemade cleaning solutions.
Step 1: Empty the Washing Machine
Make sure the washer is completely empty before beginning the descaling process.
Important
Do not leave clothing, towels, or other items inside the drum during cleaning.
Descaling products work best when they can circulate freely throughout the machine.
Step 2: Add the Descaling Agent
There are two common options for descaling.
Option 1: Commercial Washing Machine Descaler
Follow the manufacturer's instructions carefully.
Typically, you'll pour the descaler directly into:
The detergent drawer
The drum
Option 2: White Vinegar
Many homeowners use white vinegar as a natural descaling solution.
Add approximately:
2 to 4 cups of white vinegar directly into the drum
Always confirm that vinegar is safe for your specific washer model before use.
Step 3: Run a Hot Wash Cycle
Select the hottest and longest cycle available.
Why Hot Water Helps
Hot water:
Dissolves mineral deposits
Breaks down residue
Cleans internal components
Allow the entire cycle to complete without interruption.
Step 4: Clean the Detergent Drawer
While the cycle is running or afterward:
Remove the detergent drawer if possible.
Soak it in warm water.
Scrub away residue with a toothbrush.
Rinse thoroughly.
Detergent dispensers often collect mineral buildup over time.
Step 5: Wipe the Drum and Door Seal
After the cycle finishes:
Front-Load Washers
Pay special attention to:
Rubber door gaskets
Creases and folds
Moisture-prone areas
Top-Load Washers
Wipe:
Drum walls
Lid seals
Dispenser openings
Removing loosened residue helps complete the cleaning process.
Step 6: Run an Extra Rinse Cycle
An additional rinse helps remove any remaining descaling solution.
This step:
Flushes loosened minerals
Eliminates lingering odors
Prevents residue from contacting clothing
Running a rinse cycle is especially important after using commercial descalers.
Step 7: Dry the Interior
Leave the door or lid open after cleaning.
Benefits
Prevents mold growth
Reduces moisture buildup
Eliminates odors
Allow the washer to air dry completely before closing it.
How Often Should You Descale a Washing Machine?
The frequency depends on your water hardness.
General Guidelines
Hard water areas: Every 1 to 3 months
Moderate water areas: Every 3 to 6 months
Soft water areas: Every 6 to 12 months
If your area has very hard water, more frequent descaling may be necessary.
Tips to Prevent Future Limescale Buildup
You can reduce mineral deposits by following these practices:
Use the correct amount of detergent.
Run occasional hot wash cycles.
Leave the door open after use.
Clean the detergent drawer regularly.
Install a water softener if needed.
Use washing machine cleaning products periodically.
Preventive maintenance is easier than removing heavy scale buildup later.
Common Descaling Mistakes to Avoid
Avoid these common errors:
Mixing multiple cleaning chemicals
Using excessive amounts of descaler
Ignoring the owner's manual
Skipping the rinse cycle
Neglecting detergent dispensers and seals
Waiting until severe buildup occurs
Proper cleaning habits help maintain washer performance.
Conclusion
Learning how to descale a washing machine is an important part of appliance maintenance. Regular descaling removes limescale deposits, improves washing performance, reduces odors, and extends the life of your washer.
By cleaning your machine every few months and addressing mineral buildup early, you can keep your washing machine operating efficiently and your laundry looking its best for years to come.
Read More:
How to prevent washing machine corrosion
How to prevent washing machine imbalance