Help! My air conditioner has stopped working, what do I do?

 In Articles

We’ve all been there before- you’ve every intention of enjoying the icy blast of freshness courtesy of your trusty Air Conditioner…only to find it refuses to work.

Before you panic, it’s important to know that the technicians at Safe & Sure Electricians and Air Conditioning receive many calls from hot and bothered clients who can actually be helped much faster and sooner than they fear. Just follow our troubleshooting checklist before you pick up the phone and call us for help.

Troubleshooting is best undertaken from least challenging scenarios to the most challenging scenario. In this article, we’ll look at the most likely response from:

1. Power Outages and Supply
2. Checking External Switches
3. Remote Maintenance
4. Unit Maintenance


What you’re looking for are signs there may be a power outage. As power outages are increasingly more common during the very hot months, it’s often the case that your air conditioner isn’t being powered. Refer to other household appliances; TVs microwave lights etc., to determine if a power outage is the cause of your concern.

If you have experienced a ‘black-out’, turn off the air conditioner, leave off for 5 minutes before re-activating.


Another common troubleshooting point is the power switch to your air conditioner. It may seem the most obvious solution to the matter, but you may be surprise to learn it’s a very common mistake to avoid checking for. Very often, kids become intrigued by the external off/on switch and may have simply shut down the power supply by flicking the switch off.

Once you’ve determined that the problem isn’t power related, you can then begin to check for further likely points, beginning with the unit itself and the remote.


Checking your batteries in the remote doesn’t tend to be undertaken until you find the remote is becoming less sensitive to commands, signposting flat batteries. However, it is possible that you may not have noticed the batteries flattening out over a period of time and that they have simply lost power very quickly. Many remotes batteries are secured under a screw-in plate, which requires a small screwdriver to undo them for access. This is a safety precaution.

Unscrew the secure plate on your remote and replace the existing battery set with a new set. Screw the security plate back on and test your remote. Dispose of spent batteries with caution.

IMPORTANT: Never, ever leave batteries out when young children or pets may swallow them. It is important to dispose of spent batteries, (especially the very small ones) appropriately and to store live batteries in a secure and unreachable place. Pets and children can be fatally injured by accidentally ingesting batteries.


When did you last clean your filters? It’s vital to keep an eye on the state of your air conditioner filters. What’s most important is to ensure they’re clean and free of debris, and that they are washed with hot soapy water to loosen and dissolve the greasy build-up that actually attracts dirt like a magnet once it begins to appear. Follow the instructions on filter and unit maintenance, or simply:

Wipe clean the vents with a cloth soaked in warm, soapy water. If you don’t want to use soap, a solution of 1 part vinegar to 10 parts water will cut through grease. You can also use bi-carb soda for extra strength in dissolving stubborn kitchen grime.

If your filters are very large, you can run a shallow bath of hot water and soap, or alternatively, a vinegar and hot water solution with a little bi-carb as well. Soak your filters for at least one hour then simply run them under the shower to remove loosened debris. Dry and replace immediately.

NOTE: NEVER RUN YOUR AIR CONDITIONER WITHOUT FILTERS! A bad idea for obvious reasons, to do so may also breach your consumer’s warranty.

If none of these trouble-shooting steps work, then it’s definitely time to pick up the phone and speak to one of our solutions-focused team members at Safe & Sure Electricians and Air Conditioners.

Call us now! We look forward to bringing peace of mind back to your home at the earliest convenience.

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