Regular air conditioner cleaning is essential to keep your unit running efficiently, saving energy, and maintaining durability. Over time, dust and bacteria accumulate on the indoor and outdoor coils, reducing cooling performance and increasing power consumption. This article provides a step-by-step guide on how to clean your air conditioner at home — from disassembling parts safely to cleaning the indoor unit properly and effectively.
1. Why Regular AC Cleaning Is Important
- Boost cooling performance: Dust buildup blocks airflow, forcing the system to work harder.
- Save energy: A dirty AC can consume 10–20% more electricity each month.
- Prevent bacteria & mold: Moisture and dust accumulation can cause allergies and discomfort.
- Extend unit lifespan: Regular cleaning prevents damage to key components like the compressor, fan, and sensors.
2. Tools You’ll Need Before Cleaning
Before starting your air conditioner cleaning, make sure to prepare:
- Screwdriver, soft cloth, and small brush.
- Plastic bag or waterproof sheet for collecting dirty water.
- Spray bottle or low-pressure washer.
- Specialized cleaning solution for coils and fins.
- Gloves and mask for safety.
3. How to Safely Disassemble the AC for Cleaning
Step 1: Turn off the power – Always cut power to avoid short circuits.
Step 2: Open the indoor unit cover – Use a screwdriver to gently open the front panel. Remove the dust filters for separate cleaning.
Step 3: Set up a water-collection bag – Attach it below the unit to catch dirty water during washing.
Step 4: Spray cleaning solution – Evenly apply the solution on the indoor coil, wait 10 minutes, then rinse with clean water.
4. How to Clean Each AC Component
4.1. Cleaning the Indoor Unit
- Remove the air filters → soak in soapy water → rinse and dry.
- Use a sprayer to clean the fan blades and air outlets.
- Wipe the plastic housing and front panel with a damp cloth.
4.2. Cleaning the Outdoor Unit
- Use a low-pressure water sprayer to clean dust from the aluminum fins.
- Avoid spraying water on electrical boxes or the fan motor.
- Dry the surface and ensure the fan spins smoothly.
4.3. Checking Drain & Gas Pipes
- Ensure the drainage and refrigerant pipes are not bent, blocked, or leaking.
- If you notice backflow or water dripping, contact a professional technician.
5. How Often Should You Clean Your AC?
- Residential homes: Every 3–4 months.
- Offices & restaurants: Every 2–3 months.
- Dusty or roadside areas: Every 1–2 months.
Regular cleaning prevents serious damage, especially during summer when AC units run continuously.
6. AC Cleaning Service Prices by City
| Location | Service | Estimated Price |
|---|---|---|
| Ho Chi Minh City | Wall-mounted AC cleaning | 120,000 – 180,000 VND/unit |
| Hanoi | 1 – 2 HP AC cleaning | 150,000 – 200,000 VND |
| Da Nang | Home AC cleaning | 100,000 – 150,000 VND |
| Combined package | Indoor + outdoor cleaning | 250,000 – 300,000 VND |
Note: Prices may vary depending on the unit condition and service area.
7. Important Tips When Cleaning Your AC at Home
Always turn off the power before starting.
Avoid harsh cleaning chemicals that can corrode aluminum fins.
Do not spray water directly on electronic boards.
If your AC makes noise or smells after cleaning, recheck the indoor coil and drain line.
8. When to Call a Professional AC Cleaning Service
Contact a professional technician if your AC shows these signs:
The unit isn’t cooling properly even after cleaning.
Strange noises or water leaks occur.
The outdoor unit runs weakly or not at all.
Book a home AC cleaning service via the 5Sao app — technicians arrive within 30 minutes, with transparent pricing and no hidden costs.
9. FAQ – Frequently Asked Questions
1. Can I clean my air conditioner myself?
→ Yes, if you understand the process and use the right tools. However, professional inspection every six months is recommended.
2. How often should I clean my air conditioner?
→ At least once every 3 months, or more frequently in dusty environments.
3. Do I need to disassemble the whole unit to clean the indoor coil?
→ No, just open the front cover and remove the filters for washing.
4. What are the signs that my AC needs cleaning?
→ Weak cooling, musty odors, higher power bills, or water dripping.
5. Will cleaning affect the gas or compressor?
→ No, if done correctly, cleaning will not affect refrigerant or compressor performance.
In Da Nang, AC cleaning costs typically range from 200,000 – 250,000 VND per service. When booking via the 5Sao app, you’ll receive a 50 k voucher discount. 5Sao connects you with skilled technicians to ensure your air conditioner runs efficiently and safely.
Proper AC cleaning not only keeps your indoor air fresh but also saves electricity and extends the unit’s lifespan. If you don’t have time, book a professional AC cleaning service through 5Sao – The Home Service App. Our technicians arrive on-site, offer transparent pricing, and provide clear service warranties.
