Malaysia’s Heatwave Is Straining ACs: A Homeowner’s Servicing & Maintenance Checklist for 2026

Malaysia’s Heatwave Is Straining ACs: A Homeowner’s Servicing & Maintenance Checklist for 2026

Feels hotter than usual out there lately, doesn’t it? Several parts of Malaysia have recently seen daytime temperatures hovering between 35°C and 37°C, and more households are running their aircon almost non-stop as a result — which has also driven a noticeable surge in servicing and repair bookings, with some technicians now booked out.

Rather than waiting for your unit to break down mid-heatwave, it’s worth spending a few minutes now checking whether anything needs attention early.

3 Things You Can Check Yourself
1. Is the filter dusty? Open the front panel and check whether the filter has turned grey or black. A clogged filter is one of the most common causes of reduced efficiency and higher electricity bills — clean it every 2–4 weeks.
2. Is there ice buildup? If you notice frost or ice on the indoor unit, it usually points to low refrigerant or a severely blocked filter. This isn’t a DIY fix — get a technician to check it.
3. Is the drain pipe clear? Check the drain outlet for leaks or slow drainage. Long-term blockages can cause internal water pooling, mould growth, and even affect indoor air quality.

When to Call a Professional Instead
Chemical wash: most home units should get at least one deep chemical wash a year to clear out mould and grime that’s built up internally — far more thorough than wiping the filter alone.
Low or leaking refrigerant: if the unit isn’t cooling properly and you’re seeing ice on the indoor coil, it’s likely a refrigerant leak, which needs proper equipment to diagnose and refill.
Unusual noise or tripped circuits: could point to compressor, capacitor, or wiring issues — best addressed early before a small problem turns into a full breakdown.

Good Maintenance Also Means Lower Bills
A well-maintained aircon isn’t just less likely to break down — it also uses less electricity. A unit with a clogged filter can use 10–15% more power than one running at full efficiency. Regular servicing extends your unit’s lifespan and keeps your electricity bill in check at the same time.

The Bottom Line

With this heatwave keeping aircon units running almost around the clock, wear and tear adds up faster than usual. A quick self-check now, or booking a professional service ahead of time, beats having your unit fail on the hottest day of the year. If you need to book a servicing or repair appointment, get in touch and our team can help schedule a check.