Indonesia's national online shopping day, Harbolnas 12.12, falls on Saturday, 12 December 2026. For people who have just received the keys to a new house, it is a common day to buy two or three AC units at once: one for the master bedroom upstairs, one for the kids' room, sometimes one for the family room. The discounts get the attention. The warranty gets less, even though compressor cover on residential units now runs as long as 10 years, and the compressor is the most expensive part of the unit.
Midea's Indonesian blog (14 August 2026), for example, lists 5 years of spare-parts cover and 10 years on the compressor. The same page asks buyers to register the product on the official site and to keep the purchase invoice and warranty card for claims. Several other brands run similar schemes. Those 10 years only hold their value if three conditions are met from the first day.
What Indonesian Law Gives the Buyer
Law No. 8 of 1999 on Consumer Protection is fairly clear. Article 7(e) requires businesses to provide a guarantee or warranty on goods they make or sell. Article 25(1) requires producers of goods meant to be used for at least a year to provide spare parts or after-sales facilities and to honour the warranty "as agreed". Article 8(1)(j) bans selling goods without Indonesian-language instructions.
The requirement for an Indonesian-language warranty card and manual on electronics dates back to a 2009 trade ministry regulation and was later carried into Permendag 26/2021. The words that matter are "as agreed". The warranty card is the agreement, including its installation conditions and exclusions, so read it before the technician starts drilling, not after the compressor dies.
Condition 1: Official Warranty, Not a Shop Warranty
On marketplaces the same AC model can be sold with two kinds of warranty. An official warranty is backed by the manufacturer or its authorised distributor in Indonesia. A shop warranty is backed only by the seller, and it disappears if the shop closes. If two listings for the same model show very different prices, check the warranty type first.
- Buy from the brand's official store or a distributor listed on the brand's own website.
- Look for "garansi resmi" (official warranty) in the listing title or description, and screenshot the page before you pay. Sellers can edit descriptions at any time.
- Check that the box contains a warranty card and manual in Indonesian. If not, refuse it or file a complaint in the app while the complaint window is still open.
Condition 2: Installed by an Official Technician or Appointed Partner
This is where compressor claims most often fail. The terms of Samsung Indonesia's AC service programme, for instance, exclude units that have been dismantled or modified by the user or any third party other than an official technician, and installations that do not follow the manual. Other brands carry clauses with the same intent. When a listing says "gratis pasang" (free installation), buyers tend to assume the installer is official. The person who shows up may be an official technician, a partner appointed by the brand, or a freelancer the shop pays per job.
Before the installation date, ask the seller who will do the work. When the technician arrives, ask for an ID or job letter, and ask for an installation note showing the date, the unit's serial number and the technician's name. If you want to use your own regular technician, check the warranty card first. Some brands still cover the compressor as long as the installation follows the manual; others require an official technician.
Why two-storey houses carry more risk
In a two-storey house with a 4.5-metre frontage such as the Emerald 70 (47.25 m² land, 70 m² floor area), the outdoor unit for an upstairs bedroom usually goes on a bracket on the second-floor exterior wall or on the roof deck. The pipe run is longer, and vacuuming the line is a step hurried technicians tend to skip. Skipping the vacuum, running pipe beyond the limit without topping up refrigerant, or using a weak bracket can all count as installation "not in line with the manual". The manual normally states the maximum pipe length and height difference between indoor and outdoor units. Read that page before you choose where the outdoor unit goes.
In a new house there is one more party to ask: the developer. Pipe holes through walls and brackets on the facade can touch areas still under the building warranty, such as the waterproofing on the roof deck. Ask where AC points should go before anyone drills.
Condition 3: Register the Unit and Keep the Paper Trail
Many brands activate or extend the warranty through online registration using the purchase date, place of purchase, model and serial number. Register on installation day, while the box and invoice are still at hand. Keep one folder on your phone with:
- The marketplace invoice, downloadable from your order history.
- A screenshot of the product page showing "garansi resmi".
- Photos of the warranty card and the serial-number stickers on both indoor and outdoor units.
- The technician's installation note.
- Proof of warranty registration, as an email or screenshot.
The folder helps later too. If you rent out or sell the house, buyers often ask how old the ACs are and whether they are still under warranty, and a complete file answers that in a minute.
Check Your Power Supply Before Checkout
A 12.12 discount can push people into buying three units at once without doing the power maths. Three ½ PK units running together, plus the water pump, rice cooker and water heater, can trip the main breaker at night. How to add up the load per appliance, and when to request more capacity from PLN, is covered in our guide to upgrading power in a two-storey house. For sizing each room and placing the units, see the two-storey house AC guide, and for the inverter question, the inverter vs conventional comparison.
For Kingspoint Owners
The Emerald 70 on Jl. Raya Perjuangan, North Bekasi, is about 5 minutes from Summarecon Mall Bekasi. If you want to see and hear an AC unit before buying online, stop by an electronics shop there first; how loud an indoor unit sounds in a bedroom is easier to judge in person than from a decibel figure in a listing. Before booking a technician, ask the Kingspoint team which AC points and pipe routes are safe for your unit's walls and roof deck, and what power capacity comes installed at handover.
Frequently Asked Questions
Does an AC warranty become void if a non-official technician installs it?
It depends on the warranty card. Some brands' service terms exclude units dismantled or modified by anyone other than an official technician, or installed against the manual. Read the card before installation and ask the technician for an installation note.
What is the difference between an official warranty and a shop warranty?
An official warranty is backed by the manufacturer or authorised distributor in Indonesia and can be claimed at the brand's service centres. A shop warranty is backed only by the seller and disappears if the shop stops trading.
Which documents should I keep for a compressor warranty claim?
The purchase invoice, warranty card, photos of the indoor and outdoor serial numbers, the installation note, and proof of online warranty registration if your brand asks for it.
Installing ACs in an Emerald 70?
Ask the Kingspoint team for the recommended AC points, pipe routes and installed power capacity before the technician arrives.
Ask on WhatsAppReferences: Law No. 8 of 1999 on Consumer Protection, Article 7(e), Article 8(1)(j) and Article 25(1); Permendag 26/2021, Annex F (Indonesian-language instructions and warranty cards); Midea Indonesia, "Panduan Lengkap Garansi dan Service Center AC Midea", 14 August 2026; Samsung Indonesia, terms of its 24-hour AC service programme. Warranty terms differ by brand and model, and the card that came with your unit is what applies. This article is general information, not legal advice.