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Trusted Aircon Chemical Wash in Singapore
Leaking, smelly or warm aircon can feel awful in Singapore’s heat. Heng Aircon provides aircon chemical overhaul and wash services to deep-clean clogged indoor units, improve airflow and restore cooling. We also handle outdoor condenser cleaning and provide transparent pricing before work begins.
What is an Aircon Chemical Overhaul? (And How It Differs From a Chemical Wash)
A chemical wash and a chemical overhaul both help remove dirt, mould, dust and stubborn build-up inside your aircon. The main difference is how deeply the unit is cleaned. Heng Aircon will assess your system before recommending the option that suits its condition.
The Chemical Wash (On-Wall)
An aircon chemical wash is usually carried out while the fan coil unit remains mounted on the wall. It is suitable for mild to moderate dirt build-up, weak airflow, light odours or cooling issues that have not yet become severe. The process helps clean key internal parts without fully dismantling the unit.
The Chemical Overhaul (Full Dismantling)
An aircon chemical overhaul is a deeper cleaning service that involves fully dismantling the fan coil unit from the wall. The evaporator coil, blower fan, water tray and other washable components are taken apart and soaked with specialised alkaline chemicals to remove heavier dirt, slime and blockages that normal servicing may not clear.
Aircon Chemical Cleaning Price Guide
Our aircon chemical cleaning prices are based on the unit capacity and the level of cleaning required. Heng Aircon provides transparent pricing before work begins, so you know what is included in the service.
The service may include dismantling of the indoor fan coil unit, chemical soaking of key components, cleaning of the blower fan and evaporator coil, pipe flushing, drainage check, gas pressure check, re-installation and testing after cleaning. The final scope may vary depending on the aircon condition and site requirements.
| Unit | Price |
|---|---|
| 9 & 12K | $150 |
| 18 & 24K | $180 |
Warning Signs Your Unit Needs an Aircon Chemical Overhaul
Some aircon problems cannot be solved with basic filter cleaning alone. When dirt, mould, sludge or blockages have built up deep inside the unit, an aircon chemical overhaul may be needed to clean the system more thoroughly and restore performance.
Severe Water Leaking
Water leaking from the indoor unit may be caused by a blocked drainage pipe, dirty water tray or heavy internal build-up. A chemical overhaul can help clear stubborn dirt and improve drainage flow.
Foul, Sour, or Musty Odours
Bad smells from your aircon may point to mould, bacteria or trapped moisture inside the fan coil unit. Deep chemical cleaning helps remove the build-up that causes these unpleasant odours.
Weak Airflow (Blowing Hot Air)
If the airflow feels weak or the aircon is blowing warm air, dust and dirt may be restricting the blower fan or evaporator coil. A full dismantling clean allows these parts to be washed more thoroughly.
Aircon is Not Cold Anymore
When your aircon is no longer cold despite regular servicing, internal dirt, blocked coils or other system issues may be affecting cooling. Heng Aircon can inspect the unit and advise if a chemical overhaul is suitable.
Unusually High Electricity Bills
A dirty or clogged aircon may need to work harder to cool the room. This can increase energy use over time, especially in homes or offices where the aircon runs for long hours.
Noisy Operation
Rattling, grinding or unusual operating noises may happen when internal parts are dirty, strained or affected by build-up. A thorough inspection and cleaning can help identify the cause before the issue worsens.
Our Step-by-Step Aircon Chemical Overhaul Process
Heng Aircon follows a careful process to clean the unit thoroughly, protect key components and confirm that the system is working properly before handover.
1. Complete Dismantling of the Indoor Unit (FCU)
We start by safely removing the indoor fan coil unit from the wall. This allows our technician to access internal components that are difficult to clean during normal servicing.
2. Deep Chemical Soaking
The evaporator coil, blower fan, water tray and washable parts are treated with suitable chemical solutions to loosen dirt, mould, slime and stubborn residue.
3. High-Pressure Water Jet Cleaning
After chemical soaking, the parts are rinsed thoroughly using water jet cleaning to remove loosened debris and chemical residue. This helps restore cleaner airflow through the unit.
4. Chemical Flushing of Drainage Pipes
Drainage pipes are flushed to clear blockages that may cause leaking or water backflow. This step is especially useful for units with recurring water leakage problems.
5. Reassembly and Refrigerant (Gas) Check
Once cleaning is complete, the unit is reassembled and re-installed. Our technician then checks the operation, drainage, cooling performance and refrigerant pressure before completing the service.
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FAQs about Aircon Chemical Overhaul in Singapore
What is the difference between an aircon chemical wash and an aircon chemical overhaul?
An aircon chemical wash is usually done while the unit remains on the wall and is suitable for mild to moderate dirt build-up. An aircon chemical overhaul involves dismantling the fan coil unit for deeper cleaning of internal parts such as the evaporator coil, blower fan and water tray.
When should I book an aircon chemical overhaul?
You may need an aircon chemical overhaul if your aircon is leaking badly, giving off musty odours, blowing weak airflow, making unusual noises or no longer cooling well after normal servicing. A professional aircon service in Singapore can help confirm whether deep cleaning is needed.
How long does an aircon chemical overhaul take?
The time required depends on the unit condition, capacity and number of units involved. As the service involves dismantling, soaking, cleaning, flushing, reassembly and testing, it usually takes longer than general servicing or a basic chemical wash.
Is chemical cleaning safe for my aircon?
Yes, when done properly by a trained aircon technician in Singapore. The right chemical solution, soaking time and rinsing process matter. Heng Aircon checks the unit condition and cleans the components carefully before reassembling and testing the system.
Can an aircon chemical overhaul fix water leakage?
It can help if the leakage is caused by clogged drainage pipes, dirty water trays or heavy internal build-up. However, if the leak is due to damaged parts or installation issues, additional aircon repair services may be needed after inspection.
Do I still need regular servicing after a chemical overhaul?
Yes. A chemical overhaul provides deep cleaning, but regular maintenance is still important to keep the unit clean and efficient. Scheduling general air conditioning services helps reduce dirt build-up, drainage issues and cooling problems over time.
Experience the difference with Heng Aircon
Your partner for superior air conditioning installation services in Singapore. Contact us today to learn more about how we can help you stay cool and comfortable all year round.