# What Happens During a Normal Aircon Service | Aircon Expert > Step by step: filter wash, coil and blower cleaning, vacuuming, outdoor check and test run, plus time per unit and how to prepare. URL: https://www.airconexpert.com.my/guide/what-happens-during-normal-aircon-service/ Last-Modified: 2026-10-05 Tags: what is done during aircon service, aircon service checklist, general aircon service steps Decision Guide # What Happens During a Normal Aircon Service? Step by step: filter wash, coil and blower cleaning, vacuuming, outdoor check and test run, plus time per unit and how to prepare. Updated 5 October 2026 5 min read Reviewed by our lead technician ![Technician vacuuming an indoor aircon unit with a plastic sheet over the bed](/images/featured/technician-vacuuming-indoor-aircon-unit-in-malaysi.webp) Our team sees daily how proper maintenance separates an aircon that lasts a decade from one that fails during a heatwave. The frustration of a unit suddenly blowing warm air is a common issue for homeowners in the Klang Valley. Regular checkups act as a preventive strike against those exact breakdowns. We find that a clean system cools your room faster and keeps electricity bills low. If you have booked a normal aircon service [/ →](/) with us, you are making a smart choice. Let’s walk through exactly what is done during aircon service to keep your equipment healthy. Our technicians follow a precise routine to catch common issues before they become expensive repairs. ## Before We Arrive A tiny bit of preparation on your end makes the entire visit much faster. High-rise residents face specific condo management rules that require attention before anyone shows up. We recommend taking a few quick steps before the doorbell rings to ensure a smooth process: - Moving fragile items off shelves or tables directly below prevents accidental bumps. - Balcony or ledge units require clear pathways for safe inspection. - We appreciate a heads-up about anything unusual like a weird smell or a slow drip. - Many Joint Management Bodies in Selangor and KL strictly limit noisy maintenance to weekdays between 10 AM and 4 PM. Sending your block and unit number when booking helps the team register properly. ## Step by Step: What the Technician Does Our comprehensive general aircon service steps guarantee that every critical component gets the attention it needs. This structured approach ensures nothing is missed during the visit. Following a strict aircon service checklist keeps the quality of work consistent across every home. ### 1\. Check the unit and protect the room We always start by switching the unit on briefly to evaluate its current running condition. The technician listens for unusual fan noises and feels the initial airflow temperature. Power is then completely shut off at the main breaker for absolute safety. Our team places heavy-duty plastic sheets over your bed, floor, and nearby furniture to catch any stray water drops or dust. A protected workspace prevents any accidental damage to your interior design. The unit is now ready for safe dismantling. ### 2\. Remove and wash the filters and front cover We move directly to the filtration components. The front plastic panel and the primary air filters are removed for a thorough wash. These components are usually rinsed right in your bathroom or on a suitable balcony. We know that washing away this trapped dust is the fastest way to restore proper airflow and lower your cooling costs. > Data from the US Department of Energy shows that a clogged air filter can reduce a system’s cooling efficiency by up to 15%. Clean filters make a massive difference in daily performance. ### 3\. Vacuum and clean the indoor unit We move on to the internal machinery next. Malaysia’s high humidity often turns ordinary household dust into a sticky layer of grime around the blower wheel. Removing this buildup prevents the coil from freezing over during heavy usage. Our technicians use specialized vacuums to pull loose dust directly from the delicate evaporator coil surface once the filters are out. The swinging louvres and the outer casing get carefully wiped down afterward. A spotless interior casing stops bad odors from spreading through your bedroom. ### 4\. Clean the drain pan and flush the drain We focus heavily on the drainage system to avoid future water damage. A blocked drain line is the number one cause of water leaking down your interior walls. The drain pan collects all the condensation pulled from your room. Our flush process guarantees that future condensation drains safely outside instead of ruining your expensive wallpaper. The technician physically cleans the pan and flushes the entire drain pipe with water to verify clear flow. Clear pipes mean a dry wall and zero mess. ### 5\. Check the outdoor unit We then shift focus to the machinery outside your window. The outdoor condenser requires an inspection to clear trapped leaves and dirt from the heat-dispersing fins. A digital clamp meter is used to check the operating voltage and current. We look for unusual electrical readings because they often indicate a failing capacitor or a struggling fan motor. A standard 1.0 HP residential aircon in Malaysia should run near a 240V supply and draw around 3.5 to 4.5 amps of current. Catching a weak component here prevents a total breakdown later. ![Technician checking the outdoor condenser with a clamp meter](/images/content/technician-checking-outdoor-aircon-condenser-on-co.webp) Our technicians always secure the outdoor casing tightly before heading back inside. ### 6\. Reassemble and test-run All the cleaned plastic components are reassembled and the front casing is secured back onto the wall. The power gets switched back on at the main breaker for a final test run. We watch the system for several minutes to ensure no new drips form and the fan spins quietly. A digital thermometer measures the exact temperature of the cold air pushing through the louvres. Perfect airflow signifies a successful maintenance session. ![Technician measuring the air temperature during the test run](/images/content/technician-holding-thermometer-at-aircon-louvre-me.webp) We begin the final cleanup phase once the temperature drop is verified. ### 7\. Clean up and report All protective plastic sheets are removed and the floor is wiped down to leave the room exactly as it was found. A verbal report details the overall health of your cooling system. Our technician provides a clear price for any extra repairs, leaving the final decision entirely up to you. Heavy mould on the blower cylinder or low refrigerant gas pressure will be highlighted immediately. Total transparency helps you make the right choice for your home. > **What a normal service does not do** > > A basic maintenance visit does not deep-clean the inside of the coil or the blower wheel. If those internal parts are heavily soiled, you will still notice a stale smell or weak airflow afterwards. We want you to fully understand the limits of standard maintenance. Our chemical wash service [/aircon-chemical-wash/ →](/aircon-chemical-wash/) strips away that hardened dirt completely. ## How Long It Takes A single wall-mounted split unit typically takes under an hour from setup to cleanup. Ceiling cassette units require extra time due to ladder safety requirements and heavy panel removal. We find that scheduling multiple units in a single house creates efficiency for the assigned technician. A baseline time estimate table helps you plan your day around the appointment. Transparency in timing reduces stress for busy homeowners. | Aircon Type | Number of Units | Estimated Service Time | | --- | --- | --- | | Wall-Mounted Split | 1 Unit | 45 - 60 minutes | | Wall-Mounted Split | 3 Units | 2 - 3 hours | | Ceiling Cassette | 1 Unit | 90 - 120 minutes | We strictly adhere to these estimates to respect your schedule. ## What It Costs A normal general service costs exactly **RM120 per wall unit** to keep pricing transparent and predictable. Customers receive a verified multi-unit discount when servicing several air conditioners at the same address. We always confirm the final price via WhatsApp or phone before anyone drives to your location. The complete outdoor compressor check and the final temperature test run are included without any hidden add-on fees. Clear pricing builds long-term relationships. We include the following standard tasks in every RM120 visit: - Complete indoor unit vacuuming and filter washing. - Outdoor condenser inspection and amp reading. - Our team flushes the drain pan to prevent water leaks. - Zero hidden travel fees apply for standard Klang Valley coverage areas. ## After the Visit: The 7-Day Follow-Up Seven days is the perfect window to catch any secondary issues. We run a customer care check-in about a week after your appointment to verify the system is still blowing ice-cold air. Sometimes a flushed drain line can settle differently, or a tiny drip might appear after prolonged weekend usage. Any problem directly related to the maintenance work is fixed at no extra charge. We stand behind the quality of every single job. A guaranteed follow-up provides true peace of mind. ## Could You Do This Yourself? Simple habits like rinsing the primary dust filters under the tap every two weeks maintain basic airflow. Our guide to DIY aircon cleaning vs professional service [/guide/diy-aircon-cleaning-vs-professional-service/ →](/guide/diy-aircon-cleaning-vs-professional-service/) explains exactly where the safe line is for a homeowner. That routine chore keeps the room smelling fresh between professional visits. The deeper tasks like coil vacuuming, drain flushing, and electrical testing require specialized tools and safety training. We strongly advise against attempting electrical diagnostics without certification. Handling a 240V outdoor compressor without a proper clamp meter presents a serious shock hazard in Malaysia. Now that you know exactly what is done during aircon service, scheduling your next visit is simple. Our team is ready to deliver the reliable cooling you deserve. Just send a quick message with the number of units, their horsepower, and your area to lock in a slot. A fast reply will confirm your final price and preferred time. We look forward to keeping your home perfectly chilled. Consistent maintenance protects your investment all year round. FAQ ## Quick Answers How long does a normal aircon service take? Typically under an hour per wall unit. Very dirty units, or ones that are hard to reach, can take a little longer. Do I need to be home? Someone should be there to give access, show us the units and confirm the test run at the end. It doesn't have to be the owner. Will it be messy? No. We lay covers over the floor and furniture before we start and clean up the area before we leave. What if the technician finds a problem? We'll explain what we found and quote any repair before doing it. Nothing extra is done without your agreement. Keep Reading ## Related Guides ### Can Regular Aircon Servicing Lower Your TNB Electricity Bill? How dirty filters and coils raise power draw, what a service restores, and simple habits that cut your TNB bill. Read → [Can Regular Aircon Servicing Lower Your TNB Electricity Bill? →](/guide/aircon-servicing-electricity-bill/) ### DIY Aircon Cleaning vs Professional Service: What's Safe to Do Yourself Which aircon cleaning jobs are safe to DIY (filter rinse, cover wipe) and which need a technician: chemicals, electrics and drains. Read → [DIY Aircon Cleaning vs Professional Service: What's Safe to Do Yourself →](/guide/diy-aircon-cleaning-vs-professional-service/) ### How Often Should You Service Your Aircon in Malaysia? Servicing intervals for bedroom, living-room and office aircons in Malaysia's hot, humid climate, and when to step up to a chemical wash. Read → [How Often Should You Service Your Aircon in Malaysia? →](/guide/how-often-service-aircon-malaysia/) ### Normal Aircon Service vs Chemical Wash: Which Does Your Unit Need? Normal service (RM120) vs chemical wash (from RM160): scope, price and the symptoms that mean your unit needs the deeper clean. Read → [Normal Aircon Service vs Chemical Wash: Which Does Your Unit Need? →](/guide/normal-aircon-service-vs-chemical-wash/) ## Book an aircon service from RM120 Prefer a technician to take a look? We respond within 24 hours, 24/7, and confirm the price before any work. See service prices [/#general-servicing →](/#general-servicing)