Aircon repair in Singapore

Aircon repair in Singapore starts with a clear description of the fault. Note what the unit is doing, when it started and which rooms are affected, then ask a company to inspect before quoting. Compressor, gas and electrical faults all need diagnosis, so compare inspection charges and written repair scopes rather than a headline price.

Describe the fault before you call

A technician can prepare better when the first message explains the symptom precisely. "Aircon not working" covers very different problems, from a dirty filter to a failed outdoor component. Spend a few minutes noting what you can observe without opening any panel.

• Which indoor units are affected, and whether the outdoor unit runs.
• Whether the unit blows air, blows warm air or does not start at all.
• Any error code or blinking light on the indoor unit or remote display.
• Water dripping, ice on pipes, unusual noise or a burning smell.
• Whether the circuit breaker or the isolator has tripped.
• The brand, model and approximate age if a label is visible.

Photos of the indoor unit, the outdoor unit and any error display help a company judge what to bring. If the unit trips the power, smells of burning or shows sparks, switch it off at the isolator and do not keep resetting it. The electrical safety guidance from EMA explains why repeated resets are a warning sign.

Common faults and what they usually involve

Many repair visits begin with the same handful of symptoms. The table below shows what a technician will typically check. It is not a diagnosis, and the actual cause can only be confirmed on site.

Some symptoms overlap with routine maintenance. A unit that is merely dirty may cool poorly, which is why many companies suggest servicing first. Ask the technician to explain whether a clean is likely to solve the problem, so you do not pay for a repair that was not needed. The servicing price guide explains what general servicing usually covers.

Compressor problems

The compressor sits in the outdoor unit and is one of the most expensive parts of a split system. When it fails, the indoor unit may still blow air but the air stays warm. A failed starting capacitor, a wiring fault or a protection cut-out can produce similar symptoms, so a proper test matters before anyone recommends replacement.

Ask the company how it will test the compressor and related parts, and request the readings or findings in writing. If replacement is proposed, ask for the part details, the labour, refrigerant recovery and recharge, and any warranty on the work. Compare that total with the cost of replacing the whole system, especially if the unit is old or uses an older refrigerant.

When the repair and a new system cost a similar amount, the aircon installation guide can help you plan a replacement. Ask each company to explain its reasoning; a responsible technician will tell you when a repair is not good value.

Gas leaks and top-ups

Low refrigerant usually means there is a leak somewhere in the system, because refrigerant is not consumed during normal use. A top-up alone may restore cooling for a while, but the problem can return if the leak is not found. Ask whether the technician will check for leaks and what that involves.

If the company recommends a top-up, ask which refrigerant your system uses and how the amount added will be measured. Compare published gas top-up rates from directory companies, but remember that leak detection and repair are separate from the top-up itself.

Electrical faults and the right professional

Some aircon faults are electrical. A tripping breaker, a burnt isolator or damaged wiring is work for a licensed electrical worker. Many aircon companies coordinate this, but you should know who is responsible. EMA's guidance on engaging licensed workers explains the rules.

If you are not sure whether the fault is in the aircon or the home's wiring, the electrical services guide explains what to tell an electrician. Avoid opening the isolator box or the outdoor unit casing yourself.

Inspection charges and repair quotes

Most companies charge for a diagnostic visit, and some waive it if you go ahead with the repair. Ask about this charge before the technician arrives, together with any transport or after-hours fees. The published rates further down this page come from company websites in the HomezyPro directory and show how a few companies price inspection and repair.

Once the fault is found, ask for a written quote that names the part, the labour and the warranty. Confirm whether GST applies and whether the price includes testing after the repair. If the technician finds more than one problem, ask which repair is essential now and which can wait.

• The diagnosis in plain words, with the test or reading behind it.
• The part to be replaced, with brand or specification.
• Labour, refrigerant work and any electrical work, itemised.
• The warranty on parts and workmanship, and who to contact.
• Transport, inspection and GST, stated clearly.

Repair or replace?

There is no fixed age at which an aircon must be replaced. The decision depends on the fault, the repair cost, how often the unit has failed and how efficient it is compared with newer models. The NEA energy label scheme helps you compare the efficiency of replacement models.

Ask the company to put both options side by side: the repair with its warranty, and a replacement with its full installed price. If you live in an HDB flat, check the HDB rules for aircon installation works before changing the system.

Aircon repair questions

How do I know if my aircon compressor is spoilt?

You cannot confirm it by looking. A silent outdoor unit or warm air from the indoor unit can come from the compressor, a capacitor, the fan motor or wiring. Ask the technician to test the parts and show the findings before agreeing to a compressor replacement.

Is a gas top-up the same as a repair?

No. Refrigerant is not used up in normal operation, so low gas normally points to a leak. A top-up may restore cooling for a time, but ask whether the leak will be located and repaired, and get the two items priced separately.

Should I service the aircon before booking a repair?

Sometimes. Poor cooling and some leaks are caused by dirt and blocked drains, which servicing addresses. Describe the symptoms and ask the company whether servicing is likely to help, so you do not pay for an unnecessary repair or an unnecessary clean.

Do I pay if the technician cannot fix it?

That depends on the company. Many charge an inspection or transport fee whether or not you proceed. Ask about the charge and any waiver before the visit, and get the policy in writing or by message.