The Differences Between Aircon Chemical Wash & Overhaul

Aircon Chemical Overhaul vs Chemical Cleaning What Are the Differences

Air conditioning maintenance is essential to keep it running smoothly for a long time. Over time, the filters can start to accumulate dirt, dust and grime. These foreign contaminants can clog various air conditioner components and reduce their performance and efficiency. Coupled with Singapore’s tropical climate, mould and mildew may also spread inside your unit, making it a potential health hazard for you and your family.

If you are concerned that your air conditioner needs a cleanse, consider our chemical wash service. We can help you remove contaminants in your air conditioner and restore it to optimal condition.

Table of Contents

What is a Chemical Wash?

A chemical wash involves using specialised cleaning agents to cleanse your air conditioner’s internals. Think of the process as a deep cleaning of your air conditioner to remove foreign contaminants inside the unit. The specially formulated cleaning solution helps dissolve accumulated contaminants while cleaning every nook and cranny of the unit.

While thorough, using this cleaning agent requires professional expertise to clean your air conditioner properly. For one, the cleaning solution has a strong chemical composition that is environmentally harmful. As such, a certified technician must carefully flush out any remaining cleaning solution inside the air conditioner to prevent it from getting into the environment and prevent the residue from corroding vital components of the air conditioner.

A chemical wash will first require the complete disassembly of the air conditioner. Doing so will ensure the chemical solution cleans every part of the air conditioner without leaking into the environment. At the same time, our technician(s) will inspect and maintain various parts of the air conditioner, being watchful for potential leaks or other issues.

What is a Chemical Overhaul?

Where a chemical wash thoroughly cleans your air conditioner, a chemical overhaul is a more involved process. The overhaul provides a deep chemical cleanse, a thorough inspection and maintenance of faulty components in the air conditioner. You are not just getting a deep clean of your unit but a complete overhaul of anything that might be wrong with your unit.

If your air conditioner has not received maintenance for a long time, or if it starts giving problems, we recommend performing a chemical overhaul.

General Scope of Work for Chemical Overhaul

  • Initial inspection of the unit
  • Pump down refrigerants
  • Disassembly of the fan coil unit
  • Removal of the fan coil, electrical circuit board, evaporator coil, drain pan, fan motor and fan blower
  • Careful cleaning of the electrical circuit board and fan motor
  • Inspect for any internal damage
  • Chemical wash of internal and external components
  • Flush components with water to remove all contaminants and residual dirt
  • Thorough wash to remove all remaining chemical solution
  • Flush the drainage system
  • Tighten any loose parts
  • Testing and further examination of issues
  • Reassembly once the process is complete

Benefits of a Chemical Wash

Healthy Air Quality

Foreign contaminants can easily enter your air conditioner, sticking to its internal surfaces and components. Over time, they can clog parts of your air conditioner and affect its overall performance. The chemical wash removes these contaminants from every corner of the unit, dissolving them completely. As a result, the air conditioner can once again let out clean, cool air. It is not a permanent solution, but a chemical wash is still the best way to keep your air conditioner clean and safe.

Long-term Savings

Think of a chemical wash as part of preventive maintenance, keeping your air conditioner in optimal condition for the foreseeable future. As a result, you will not have to spend a substantial amount on various repair works to keep the air conditioner running smoothly. If a single chemical wash can keep your air conditioner functioning at its best for an entire year, you save a significant sum on costly repair work or buying a brand-new air conditioner.

Restore Performance

A chemical wash cleans every part of your air conditioner’s internals, making it seem like a brand-new unit after the wash. A functional air conditioner means better long-term efficiency, thus reducing your air conditioning costs while improving comfort.

Benefits of a Chemical Overhaul

A chemical overhaul provides the same benefits as a chemical wash but with a few additional perks.

Extends the Unit’s Lifespan

During the chemical overhaul, our technician also performs a detailed inspection of your air conditioner. They will look out for potential problems that may arise in the future and remedy it before it worsens. This way, you can keep your air conditioner running longer without worrying about unexpected critical failures or a sudden need for a replacement.

Complete Maintenance

The chemical wash does not cover every part of the air conditioner, only areas more prone to clogging by bacteria, dust, mould and grime. An overhaul is a complete process that cleans up your air conditioner and provides thorough maintenance of any faulty parts detected during the inspection.

How is the chemical wash different than a chemical overhaul?

Chemical wash and chemical overhaul are both methods of cleaning the internal components of an air conditioner using chemical solutions.

Chemical wash is a preventative maintenance service perform on your system 6 to 12 months a year simply to keep the system clean and running efficiently.

Chemical overhaul is a preventative maintenance service perform on your system once a year, or every 1 to 3 years, includes full disassembly, detailed inspection, and the replacement of any worn-out or faulty parts.

Though both use chemical solutions and take time, a chemical overhaul is more involved, making it both longer and more expensive than a chemical wash.

Frequently Asked Questions

What is the difference between regular maintenance and a chemical wash?

Regular maintenance aims to ensure the vital components of an air conditioner, such as the evaporator coil, filters, and drainage system, are all working optimally to keep the unit in peak condition. A chemical wash aims to remove foreign contaminants caught in the air conditioner with a specialised chemical solution.

How often will my air conditioner need a chemical wash?

We recommend a chemical wash biannually to keep it free of foreign contaminants for best results.

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