Understanding aircon warranty coverage: what is included and for how long
By Janice · Updated 2026-07-09
Warranty disputes are one of the more common frustrations that show up in aircon service feedback, usually because buyers assume one warranty covers everything, when a unit purchase actually comes with at least two separate types of coverage, and they do not always agree on who is responsible for a given fault.
If warranty support and reliability matter most to you, warranty-backed providers on this directory are ranked partly on how consistently they honour claims, which is worth checking before you buy. The home page lists every category if you are also comparing installers or repair specialists at the same time.
The two warranties on a new aircon
| Warranty type | Covers | Who provides it |
|---|---|---|
| Manufacturer warranty | Unit parts, compressor, factory defects | The brand, regardless of who installed it |
| Workmanship warranty | Installation quality: piping, wiring, mounting | The installer, not the manufacturer |
A leaking pipe joint that was not sealed properly is a workmanship issue. A compressor that fails from a factory defect is a manufacturer issue. The same symptom, a unit that stops cooling, can trace back to either one, which is why the diagnosis matters before you know which warranty applies.
Typical coverage periods
Coverage length varies by brand and model, but a general pattern holds across most manufacturers: the compressor carries the longest warranty period, since it is the most expensive part to replace, while general parts and labour coverage from the manufacturer tends to run shorter. Workmanship warranties from installers vary more, and are worth confirming in writing rather than assuming a standard length.
What commonly voids a warranty
- Servicing by an unauthorised technician. Some brands require services to be logged with an approved service centre to keep the warranty active.
- Skipped maintenance. A small number of manufacturers require proof of regular servicing to honour a compressor claim.
- Incorrect power supply. Voltage issues or a poorly wired circuit can void coverage if the fault is traced back to the electrical supply rather than the unit.
- Physical damage. Impact damage, water damage from an unrelated source, or unauthorised modification typically voids coverage outright.
Why some warranty claims get refused
Warranty disputes and refusals do come up in customer feedback across this directory, and the pattern behind most of them is a disagreement over cause: the customer believes it is a covered defect, the installer or brand argues it is wear, misuse, or a maintenance gap. Keeping service records, even simple ones like a date and what was done, makes a claim far easier to support if a dispute happens later.
Protecting your warranty from day one
Register the unit with the manufacturer if required, keep the original purchase and installation receipts, and stick to the recommended servicing schedule with a provider willing to log the visit. If the installer offers a workmanship warranty, get the coverage period and what it includes in writing at the time of installation rather than trying to track it down later. If you are still choosing your first unit, the first-time aircon buyer guide covers what to check on warranty terms before you commit to a purchase.
Choosing a provider with warranty support in mind
Not every provider offers the same level of workmanship warranty, and the length and terms are usually negotiable before you commit rather than fixed. Asking upfront whether the workmanship warranty covers just the installation or also extends to any follow-up adjustments, like resealing a joint that develops a slow leak months later, is a reasonable question to ask before signing. A provider confident in their own work will usually answer this clearly rather than deflecting to the manufacturer’s terms alone.
If a claim gets refused
Ask for the specific reason in writing and compare it against your warranty terms and service history. If the refusal seems to conflict with your records, most brands have a local service centre or customer service line separate from the installer that can review the case. This is general information based on common local patterns, not a substitute for reading your specific warranty terms, since coverage details differ by brand and model.
More on how this directory scores providers on warranty reliability is on the methodology page.
FAQ
- What is the difference between a manufacturer warranty and a workmanship warranty?
- The manufacturer warranty covers the unit itself, mainly parts and the compressor. The workmanship warranty covers the installer's work, like piping connections and wiring. A fault can be covered by one and not the other, depending on the cause.
- How long does a typical compressor warranty last?
- Compressor warranties are usually the longest-running part of the coverage, often several years, while general parts coverage tends to run shorter. Exact terms vary by brand and model, so check the warranty card that came with the unit.
- What commonly voids an aircon warranty?
- Servicing by an unauthorised technician, physical damage, incorrect voltage supply, and skipping required maintenance are the most common reasons a claim gets refused. Read the terms rather than assuming any servicing keeps the warranty valid.
- What should I do if a warranty claim is refused?
- Ask for the refusal reason in writing, check it against your warranty card and service records, and if you believe the refusal is unjustified, escalate to the brand's local service centre rather than only the installer.