Does Chemical Service of Your Aircond Once a Year Really Help Reduce Electricity Bills?
If you rely on your air conditioner daily, your electricity bill can be high. Many homeowners wonder if annual chemical service can actually help lower electricity usage. This guide explains the benefits and cost-saving potential.
1. What Is Chemical Aircond Service?
Chemical service (deep cleaning) involves:
- Cleaning the evaporator coil of dirt, dust, and grease
- Cleaning the condensing unit
- Removing mold, bacteria, and sludge buildup
- Ensuring refrigerant lines are efficient
Recommended once a year in Malaysia’s humid climate.
2. How Dirty AC Coils Affect Electricity
- Reduced heat exchange: dirt makes AC work harder
- Longer runtime: compressor runs more, electricity increases
- Efficiency drop: even inverter ACs lose efficiency with clogged coils
A dirty coil can reduce AC efficiency by 15–30%.
3. How Annual Chemical Service Helps
- Cleaner coils → less energy wasted
- Faster cooling → room reaches set temperature quicker
- Lower electricity bills → less runtime & compressor stress
- Longer AC lifespan → fewer breakdowns
4. How Much Can You Save?
| Condition | Electricity Cost/Month (RM) | Notes |
|---|---|---|
| Dirty coil | 50–70 | AC runs longer to cool |
| Cleaned coil | 35–50 | AC reaches temp faster, less runtime |
Savings vary by room size, AC type, and electricity rate. Annual chemical service can save RM100–200/year plus reduce repairs.
5. How Often Should You Do Chemical Service?
- Once a year – standard for Malaysian homes
- Every 6–8 months – very humid areas or heavy usage
- After 2–3 years without service – urgent cleaning needed
Combine normal service every 3–4 months with annual chemical service for best efficiency.
6. Extra Tips to Maximize Electricity Savings
- Set AC temperature to 24–26°C
- Use sleep mode at night
- Ensure airflow is not blocked
- Use a fan for circulation
- Ensure copper pipes are properly insulated
7. Conclusion
Chemical service once a year does help reduce electricity bills by restoring AC efficiency, reducing compressor stress, and preventing hidden mold or sludge. Combined with proper filter cleaning and AC settings, it improves comfort and saves money.
Need professional chemical service in Petaling Jaya / Damansara Perdana? Call 018-250 0089 or email tsetc@thiamseng.com.