Renovating a room, replacing an old unit, or just moving houses? If you’ve got a split system air conditioner on the wall and you need it gone, you’re probably wondering how to disconnect a split system air conditioner without too much hassle. It sounds straightforward. Unplug it, pull it off the wall, done, right? Not quite. There’s a bit more to it than that, and getting it wrong can cost you money or land you in legal trouble.
Why You Can’t Just Disconnect a Split System Yourself
The obvious reason people want to DIY this job is to save money. But here’s the thing: the refrigerant gas inside your aircon unit is a controlled substance in Australia. Under the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989, it’s illegal to handle or even take possession of fluorocarbon refrigerant without an ARCtick licence.
This applies even if you’re venting it into the atmosphere or just trying to disconnect the refrigerant lines yourself. The fines for doing this incorrectly are significant, and beyond the legal side, releasing refrigerant gas into the atmosphere is genuinely harmful to the environment.
So, while you can turn the system off at the wall and flip the isolator switch, that’s where your involvement in the process should stop. Everything from that point on needs a licensed technician.
What a Licensed Technician Actually Does
When a qualified technician comes out to disconnect a split system, the process is methodical and covers a lot more than just lifting the unit off the wall. Here’s what the job typically involves:
- Switch off the power at the breaker and confirm the circuit is safe before touching anything.
- Recover the refrigerant gas using a certified recovery machine. The gas is pumped into an approved cylinder, not released into the air.
- Disconnect the electrical wiring and isolate the circuit. If the unit is being reinstalled elsewhere, cables are labelled carefully.
- Undo the refrigerant lines at the flare nuts and cap the pipes to keep moisture out.
- Remove the condensate drain line.
- Dismount the indoor head unit from its wall bracket. The bracket itself can be removed, too, depending on what you need.
- Remove the outdoor unit. These are heavier than most people expect, often over 35 kg, so a two-person lift with proper equipment is standard.
- Patch the wall. Pipe penetrations through the wall are sealed with weatherproof silicone, and any internal gyprock holes are made good.
- Issue a refrigerant recovery certificate, which you’ll need if you’re taking the old unit to a council drop-off or recycling facility.
It’s a complete process, and each step matters. Skipping any of them, or doing them out of order, creates problems down the track.
Important Considerations for Homeowners in the South West
If you’re in Donnybrook, Dunsborough, Margaret River, or anywhere along the South West coast, there’s an extra consideration worth keeping in mind. The coastal salt air accelerates corrosion on outdoor units, which means systems in this region often need replacing sooner than in inland areas. It’s one reason we see a lot of removal jobs bundled with new installations, particularly before summer when holiday rental owners want everything running reliably.
If your current system is getting on in years and you’re thinking about a newer model, it’s worth looking at what’s available. Daikin air conditioners are a popular choice in the region, and if you’re after something energy-efficient and quiet, our blog on choosing a quiet split system air conditioner is a good place to start. Understanding energy star ratings can also help you make a more informed decision when comparing models.
How Much Does It Cost to Disconnect a Split System Air Conditioner?
Pricing depends on a few things: the size of the system, how easy it is to access the outdoor unit, whether electrical work is involved, and whether you’re bundling the removal with a new installation.
As a general guide, removal bundled with a new install tends to be more cost-effective than a standalone disconnection job. Stand-alone removal costs vary, and regional WA labour rates can sit slightly higher than east coast benchmarks. For current pricing in your area, it’s worth getting a quote directly.
Replacement vs Removal: What Do Most Homeowners Do?
In many cases, split system air conditioner removal is carried out at the same time as a new installation. This is usually more cost-effective than a standalone removal because labour and access equipment are already being used.
If your system is older, noisy, or inefficient, upgrading at the same time can be a practical option. Modern systems, such as energy-efficient split systems or brands like Daikin, are commonly installed as replacements.
Ready to Get Your Old Split System AC Removed?
If you’re renovating, replacing an ageing system, or just need the unit gone before a repaint, Busselton Air is here to help. We handle the full removal process, including refrigerant recovery, electrical isolation, and tidy wall patching, so you don’t have to worry about a thing. Contact us to book a no-obligation quote or call us on (08) 9752 4246.