How to Clean and Maintain Your Dishwasher Monthly in Just 4 Minutes (2026)

Dishwashers lasting 10-15 years is not uncommon – if you know how to clean and maintain them correctly. In fact, it only takes 4 minutes a month. This article provides a specific maintenance schedule by week/month/year for all dishwasher brands.

Why is regular cleaning and maintenance necessary?

3 common problems if not cleaned:

• Clogged filter screen → slow draining, E15 error, water spills onto the floor
• Limescale buildup on heating element → machine struggles, consumes 30% more electricity, reduces lifespan
• Smelly, moldy machine interior → dishes are clean but "aesthetically flawed"

1. Weekly (3-5 minutes)

1.1. Clean the bottom filter screen

1. Pull out the bottom rack completely
2. Locate the filter screen at the bottom of the machine (circular, with a handle)
3. Twist counter-clockwise to remove
4. Soak in warm water + soap for 5 minutes
5. Use a toothbrush to scrub off food residue
6. Rinse with clean water, reassemble (twist clockwise)

⚠️ This is the most IMPORTANT step – 90% of "dishes not clean" errors are due to a clogged filter screen.

1.2. Wipe the rubber door gasket

1. Use a damp cloth + diluted white vinegar (1:1)
2. Wipe along the rubber gasket around the door
3. Remove all limescale + black mold if present

Black mold around the gasket is the number one cause of unpleasant odors in the compartment.

1.3. Check salt and rinse aid

Monitor warning lights:

• Salt light on → refill Largo German Salt 2kg
• Rinse aid light on → refill Largo Rinse Aid 1000ml

2. Monthly (4 minutes)

2.1. Self-Clean / Machine Care – Clean the machine interior

1. Empty all dishes from the machine
2. Place 1 Largo All In One tablet (40pcs) in the detergent dispenser (not at the bottom of the machine)
3. Select program:
   • Bosch/Siemens: "Machine Care" or "Intensive 70°C"
   • Electrolux/AEG: "Self-Clean" or "Pro Clean"
   • LG: "Tub Clean"
   • Samsung: "Self-Clean" or "Storm Wash"
   • Other brands: run "Intensive 70°C" with an empty compartment
4. Press Start, let the machine run a full cycle (1.5-2 hours)
5. After completion, open the door to air out the compartment for 30 minutes

The All In One tablet with enzymes + limescale remover + glass protect will clean:

• Limescale build-up on interior walls
• Grease on spray arms
• Black mold in crevices
• Unpleasant odors

2.2. General check-up

• Salt level in reservoir: enough for the next month?
• Rinse aid level: how many months will it last?
• Remaining Largo tablets: enough for 30 days?

If low: order Largo Combo 3 – 555,000 VND (enough for 2-3 months).

3. Quarterly (15 minutes)

3.1. Remove and clean spray arms

1. Remove spray arms (twist counter-clockwise)
2. Soak in white vinegar + warm water for 30 minutes
3. Use a toothpick to clear clogged spray holes
4. Rinse with clean water and reassemble

3.2. Wipe the interior compartment

1. Mix solution: 250ml white vinegar + 250ml warm water + 1 tablespoon baking soda
2. Use a soft cloth to wipe interior walls, top, and bottom
3. Pay attention to crevices and corners
4. Then run an empty ECO cycle to rinse thoroughly

4. Annually (30 minutes)

4.1. Check water inlet/outlet hoses

• Disconnect the inlet hose, check the filter screen at the end of the hose
• Clean the hose filter screen if there is limescale buildup
• Check that the drain hose is not kinked/clogged

4.2. Check door rubber gasket

• If the gasket shows signs of tearing, hardening, or loss of elasticity → call a technician to replace it
• A good gasket = a tight-closing door = no water leakage

4.3. Call an authorized technician for inspection

• Water softening system (ion exchange resin)
• Water hardness sensor
• Spray arms, motor

Cost: ~300,000-500,000 VND. Much cheaper than repairing the machine when it breaks down (3-5 million VND).

5. Specialized cleaning agents (Dishwasher Cleaner)

When cleaning the machine interior, you have 2 options:

Recommendation: Use Largo All In One monthly. Specialized cleaners are only needed if the machine hasn't been cleaned for a long time (6+ months) or has a strong odor.

6. Warning signs that immediate maintenance is needed

• ⚠️ Dishes have white streaks (limescale on heating element)
• ⚠️ Machine makes strange noises, strong vibrations (clogged spray arm or foreign object)
• ⚠️ Compartment has unpleasant odor after cycle (black mold)
• ⚠️ Water drains slowly, water remains at the bottom after completion (clogged filter)
• ⚠️ Error lights E15, E22, E24 (use brand-specific error code chart)
• ⚠️ Detergent tablet not fully dissolved at the end of the cycle

7. Common maintenance mistakes

• ❌ Closing the door immediately after washing → damp + mold. Correct: open for 30 minutes to air out.
• ❌ Not cleaning the filter screen → clogged, dishes not clean. Correct: once a week.
• ❌ Using sharp objects to scrub the compartment → scratches stainless steel. Correct: soft cloth + baking soda.
• ❌ Only cleaning when there's an odor → too late. Correct: monthly regular cleaning.
• ❌ Skipping rinse aid → wet dishes + streaks. Correct: always ensure enough Largo rinse aid.

8. Overall maintenance schedule

9. "Standard Maintenance" Combo

To make your dishwasher last 10-15 years, you need 3 EU-standard supplies:

1. Largo German Salt 2kg – protects heating element from limescale
2. Largo Rinse Aid 1L – dry dishes + no streaks
3. Largo All In One tablet (40pcs) – for regular cleaning

Total: Largo Combo 3 – 555,000 VND (Classic + Salt + Rinse Aid Gel) for 2-3 months, saving 38,000 VND. Add Trial Kit 9,000 VND with 2 All In One tablets for 2 compartment cleanings.

Summary

With just 4 minutes a month and 5 minutes a week, your dishwasher will last 10-15 years, and dishes will be as clean as new. Regular maintenance is 100 times cheaper than repairing the machine when it breaks down (3-5 million VND/repair).

Final advice: Use EU-standard supplies (Largo imported from Germany, REX, EVFTA code) – this is the most important factor for preventing machine breakdowns. Shop: www.sieutietkiem.com or www.largo.vn. Consult: inbox facebook.com/largovietnam.

Frequently Asked Questions

Q: Can I clean the machine interior with white vinegar?

A: Yes, but not frequently. Vinegar contains weak acid → can gradually corrode rubber gaskets. It is recommended to use Largo All In One tablets for monthly cleaning, and only use vinegar when cleaning spray arms quarterly.

Q: If salt and rinse aid are already integrated into All In One, do I still need to add them separately?

A: Yes, it is mandatory. All In One tablets have supporting functions but cannot replace salt in the water softening system and rinse aid in the dedicated compartment. This is recommended by all machine manufacturers.

Q: My machine is struggling, showing E15 – can I fix it myself?

A: 80% can be fixed yourself. Check 3 points: (1) Is the bottom filter screen clogged? (2) Is there excess foam from using cheap tablets? (3) Check the float at the bottom. If it cannot be fixed → call a technician.

Q: My machine compartment smells, how do I get rid of it?

A: Run 2 Self-Clean cycles consecutively with 2 All In One tablets. The odor level will reduce by 80% after the first run. Then maintain monthly cleaning + open the door for 30 minutes after washing.