Firstly, I suggest everyone should turn the power off to their AC units, either at the isolator next to the outdoor compressor or at the switchboard just in case cleaning solution ends up on any electrical circuits.
I was pleased to see that there is enough solution to clean up to four AC units as we had four units to clean.
The collection bag worked well to isolate the spill zone and capture the liquid gunk. However frustratingly the nozzle on the spray gun kept popping out and falling into the collection bag. I had to continually re-assemble it being careful to ensure the O-rings seals at the trigger gun end were put in correctly, but it kept slipping off. In the end I used duct tape to keep the nozzle from coming out the trigger gun allowing me to continue. This was the reason I did not give it 5 stars.
One thing you must be aware of, the spray solution on the coils and the water flushing to clean the coils will go down the drain hole. This drain hole must be clear and unblocked for this gunk to drain away, if it is not then it will pool at the bottom of the water collection tray under the coils then spill over into the plastic bag, which is great. But the gunky water in the collection tray remains as it can’t go anywhere.
Our one gross unit ended up with a block drain two days after our cleaning job overflowing onto our kitchen bench and creating some water damage to the bench. This is not a fault of the AIRCONcare cleaning system, it’s just a consequence of the drain blocking due to gunk in the line which can happen to any system. So, I recommend that everyone should be aware that the chance of a blockage and water spilling out of the collection tray into your house is a real possibility.
When spraying the fan area and the air louvres the liquid falls directly into the collection bag as this part of the AC is underneath the coils and does not go into the collection tray and drain hole.
As an optional extra I chose to remove the front cover of our AC units prior to cleaning, typically done by removing 2 or 3 concealed screws and carefully leveraging the cover off. If you choose to do this then you absolutely MUST turn the power off as this will expose the dangerous electrical connection, can’t stress this enough. Then you MUST ensure you cover the electrical circuits with plastic and tape that plastic into place, so you don’t get any over spray on the electrical circuits.
The advantage of doing this is that you can have better access to the coils, and you can take the plastic cover outside and hose it with the garden hose thus saving the cleaning solution for the coils and fan.
The blockage I had was dealt with by taking this same cover off, identifying the drain hole location and using the AIRCONcare spray nozzle to squirt water down thru the small hole which for me was enough to clear the blockage.
Overall, I was pretty pleased with the system other than the spray nozzle continuously falling off.