Aircon installation warranty vs workmanship warranty in Singapore

Many installation quotes list warranty in a single line — something like one year parts and labour — without splitting what each part covers. This sounds like complete cover. It is usually not. Product cover and workmanship cover are two separate obligations, often held by two different parties, and each one has conditions the other does not share.

The gap shows up when a fault appears. If a pipe joint fails a month after installation, is that a part defect or a fitting error? The answer determines which party handles the claim, how long you have to file it, and what evidence you need to provide. Without the split in writing, both parties can reasonably point to the other, and you end up in the middle.

Getting this clear before something breaks costs nothing. It is a question you can ask at the quote stage, and a good contractor will answer it without hesitation.

Product cover — sometimes called manufacturer or equipment warranty — applies to component failures caused by defects in the part itself. A compressor that fails due to a material defect, a control board that fails with no sign of electrical misuse, or a motor bearing that seizes within the expected service life are all examples of faults that fall under product cover. The manufacturer or supplier handles this, and the claim process goes through them directly.

Workmanship cover applies to faults that stem from how the installation was carried out. A refrigerant leak at a flare joint that was not properly tightened, a drain that was routed at the wrong angle and backs up, or a unit that vibrates excessively because the mounting bracket was not secured correctly are all workmanship faults. These go back to the installer, not the manufacturer.

The time windows for each are often different. Product cover may run for three to five years on certain parts. Workmanship cover is often shorter — sometimes just one year. Knowing both windows matters because a fault that appears in year two may still be within product cover but past workmanship cover, or vice versa.

Ask the contractor to put the two covers in separate sections in writing. Each section should state what it covers, what it excludes, how long it runs, and what you need to show when you file a claim. If the contractor merges them into one paragraph, ask for the split to be made explicit.

Ask who handles the first response for each type of fault. For product faults, is it the contractor who contacts the supplier, or do you contact the brand service centre directly? For workmanship faults, is the original contractor responsible, or does the warranty transfer to a third-party service provider? These questions are easier to answer before anything breaks.

Also ask what records you need to keep to support a claim. Some warranties require proof that the unit was serviced on schedule. Others require the original installation receipt and handover notes. Knowing this upfront lets you keep the right records from day one.

Write down what changed, when it changed, and what the unit was doing in the days before the fault appeared. A clear timeline — not a memory of roughly six weeks ago, something changed — is the most useful thing you can give a warranty reviewer. It lets them match the symptom to a likely cause without relying on guesswork.

Once you have a fault description, identify which cover is more likely to apply based on the nature of the fault. A part failure with no sign of misuse or installation error goes to product cover. A fault that traces back to how something was fitted goes to workmanship cover. File under the matching cover first, and keep a copy of everything you send.

If the two parties push the fault to each other — each saying the other is responsible — ask both for a written statement of why they believe the fault falls outside their cover. This puts the disagreement on record and often moves things faster than repeated calls.