Is Your Air Conditioner Ready for a Geelong Summer?
Is Your Air Conditioner Ready for a Geelong Summer?
The short answer
Your air conditioner is ready for a Geelong summer if it cools evenly, runs quietly, drains outside and has been serviced in the past 12 months. If it is older, smells musty or struggled last summer, book a service now, before the first heatwave fills technicians' diaries.
This guide walks you through a 10-minute check you can do yourself, the warning signs that mean you need a technician, what a proper service includes, what it costs, and whether to repair or replace.
Why Geelong summers are hard on-air conditioners
Geelong summers push air conditioners harder than most people expect, and the problems usually show up on the first hot day.
• Sudden heat spikes- Hot northerly winds can lift temperatures past 35°C, sometimes 40°C and above, then a cool change drops them again. Your system works hardest exactly when the outdoor air is hottest.
• Salt and humidity near the coast- Homes close to the bay; the Bellarine or the Surf Coast see faster corrosion on the outdoor unit's coil and metal parts.
• Dust, pollen and smoke- Dry summer days and fire-season smoke clog filters and coils, which makes the system work harder for less cooling.
• Months of sitting idle- If the unit has barely run since last summer, dirty filters, blocked drains and small faults stay hidden until you need it most.
• Everyone switches on at once- The first heatwave brings a rush of callouts, so waiting until the day it fails often means waiting days for a technician.
The good news: most summer breakdowns are preventable with a few simple checks and one annual service.
How Can I Test My Air Conditioner Before Summer?
You can spot most problems yourself in about ten minutes. Switch the system off at the wall or isolator before touching the outdoor unit or filters.
- Clear the outdoor unit- Remove leaves, weeds, cobwebs and anything stored against them. Leave around 30 cm of clear space so air can flow freely.
- Clean the filters- Slide them out of the indoor unit, vacuum or rinse them in lukewarm water, let them dry completely, then refit. Do this every few weeks when the system is running daily.
- Run a cooling test- Set it to cool at 24°C and run it for 10 to 15 minutes. The air from the vents should feel clearly cooler, roughly 8 to 12°C below the room temperature.
- Listen and smell- Rattling, squealing, buzzing, a burning smell or a damp, musty smell all need attention.
- Check for water- A little water dripping outside from the drainpipe is normal. Water dripping inside, onto the floor or down the wall, is not.
- Look at the pipes- The insulation on the pipes should be intact, and there should be no ice or frost on the unit or pipes.
- Check the remote and settings- Replace the batteries, check the timer and make sure it is set to cool, not heat or fan only.
- Check the power- Make sure the circuit breaker has not tripped and the isolator switch is on.
- Clear the airflow indoors- Move furniture, curtains or boxes that block the vents or the sensor.
- Note the last service date- If it was more than 12 months ago, or you cannot remember, book one.
Safety note: Do not remove panels, touch electrical parts or top up refrigerant yourself. Gas handling and electrical work must be done by a licensed technician.
Warning signs your air conditioner is not ready
If your system does any of these, get it checked before the hot weather arrives.
| What you notice | Likely cause | What to do |
|---|---|---|
| Blows warm or weak air | Dirty filter, low refrigerant from a leak, or a failing compressor or capacitor | Clean the filters. If it is still warm after an hour, switch it off and call a technician. |
| Water leaking inside | Blocked drain line or dirty coil | Turn it off and call a technician. |
| Ice on the pipes or unit | Restricted airflow or low refrigerant | Turn it off, let it thaw, clean the filters. If the ice returns, call a technician. |
| Musty or sour smell | Mold or bacteria on the coil, filter or drain tray | Clean the filters. A professional coil cleaner usually fixes the rest. |
| Rattling, squealing or banging | Loose parts or a failing fan motor or compressor | Turn it off and call a technician. Running it can cause further damage. |
| Will not turn on | Tripped breaker, flat remote batteries or a control fault | Check the breaker and batteries. If both are fine, call a technician. |
| Turns on and off repeatedly | Dirty outdoor coil, overheating or an electrical fault | Clear the outdoor unit. If it continues, call a technician. |
| Flashing light or error code | The system has detected a fault | Note the code from the display or manual and give it to your technician. |
| Bills higher than last summer | Dirty filters or coils, refrigerant loss or an ageing system | Book a service and ask for a performance check. |
If you see ice, smell burning or hear loud grinding, turn the system off straight away. Running a faulty system often turns a small repair into a big one.
What pre-summer service includes?
A proper service is far more than a filter wash. Here is what a good technician should do, and what you should ask for.
• Clean the filters and the indoor coil
• Clear the condensate drain so water cannot back up
• Clean the outdoor coil and check the fan
• Check refrigerant pressure and look for leaks
• Test the fan motors, capacitors and electrical connections
• Measure the temperature difference between the air going in and coming out
• Test the remote, controls and safety switches
• Give you a clear report, and a written quote for anything that needs fixing
When to book- Early spring to early summer is ideal. Booking before the first heatwave means shorter waits and time to fix anything the technician finds.
How long it takes- A standard split system service usually takes about an hour. Ducted systems take longer.
How often- At least once a year. Book more often if you have pets, live near the coast or dusty roads, or run the system most of the day.
Warranty- Many manufacturers expect regular service to keep a warranty valid, so check your warranty terms.
For more detail, see our guide: How often should an air conditioner be serviced?
How much does an air conditioner service or repair cost?
A standard split system service in Victoria typically costs between $120 and $250, and ducted systems cost more. These are general Victorian estimates, so your quote will depend on the system and the job.
| System type | Typical service cost (Victoria) |
|---|---|
| Split system | $120 to $250 |
| Multi-head split system | $180 to $400 |
| Ducted system | $250 to $500 |
| Annual maintenance plan | $200 to $450 |
What about repairs?
Repair costs depend entirely on the fault. A blocked drain or a failed capacitor is usually a smaller job. A failed fan motor or compressor costs more. A good technician diagnoses the fault, explains it in plain English and gives you a written quote before starting.
What about "regassing"?
An air conditioner is a sealed system, so it should not need topping up with refrigerant as part of routine service. If the gas is low, there is a leak, and it needs to be found and fixed, not just topped up.
Three ways to keep costs down:
• Service once a year so small faults are caught early.
• Clean the filters yourself every few weeks.
• Book before the first heatwave, where emergency and after-hours call-outs are most likely.
Should you repair or replace your air conditioner?
Repair it if it is under 10 years old and has one fixable fault. Replace it if it is 12 to 15 years old, keeps breaking down, or the repair costs around half the price of a new system. Most air conditioners last roughly 10 to 15 years with regular service.
| Your situation | Usually, best |
|---|---|
| Under 8 years old, one fault | Repair |
| 10 to 15 years old, repair costs about half of a new unit | Replace |
| Breakdowns in two summers in a row | Replace |
| Bills keep climbing and servicing does not help | Consider replacing |
| Struggles to cool a room that was added or changed | Get the size assessed first |
| Cooling only, and you also want efficient winter heating | Consider a reverse cycle upgrade |
As a guide, a new split system installed in Australia typically costs about $1,200 to $2,500 for a 2.5 kW unit and $1,800 to $3,500 for a 5-kW unit, depending on the job.
A new system is more efficient and quieter, but the wrong size is a common mistake. A unit that is too small never keeps up, and one that is too big switches on and off constantly, wastes power and cools unevenly. Ask your technician to size it for the room, not just quote the cheapest unit.
How to stay cool and keep bills down?
Set your air conditioner to 24°C in summer. Each degree lower can add roughly 10% to running costs, so a few small habits make a real difference.
• Start early- Turn it on before the house heats up. Cooling a warm house from scratch costs more than holding a cool one.
• Pick one temperature and leave it- Constantly switching it on and off, or dropping it to 18°C, does not cool faster. It only wastes power.
• Close the house in- Shut doors and windows in the cooled area, and close blinds or curtains on the sunny side during the day.
• Use ceiling fans- They help the room feel cooler, so you can keep the thermostat higher.
• Cool the rooms you use- Close off unused zones on a ducted system.
• Give the outdoor unit shade and space- Shade helps, but never box it in. It needs open airflow.
• Use the timer or sleep mode- so it is not running all night at full power.
• Keep filters clean- A clogged filter is the most common reason a system works harder than it should.
Please read the full article, to understand about temperature settings: What temperature should I set my air conditioner to?
Are there rebates for a new air conditioner in Victoria?
Yes. The Victorian Energy Upgrades program offers discounts of up to $1,610 when you replace a single-room gas heater with an efficient reverse cycle air conditioner, and up to $5,530 when you replace a ducted gas heater. Servicing or repairing your current system does not qualify.
To be eligible:
• The system must be a high-efficiency reverse cycle air conditioner approved under the program.
• For a home, it must come with at least a 5-year warranty.
• If you are replacing an existing system, that system must be more than 2 years old.
• Private rental properties are eligible too, but landlord and tenant should plan the upgrade together.
• The discount must be arranged through an accredited provider before any work starts, and your installer can work with one.
The discount amounts depend on the system size and what you are replacing, and the program is reviewed from time to time, so always get a quote that shows the discount in writing. Details: Victorian Energy Upgrades, heating and cooling discounts
Frequently asked questions
When should I service my air conditioner before summer?
Book your service in spring, ideally October or November in Geelong, before the first heatwave. Technicians are busiest once temperatures climb, so booking early gives you a shorter wait and time to fix anything that is found.
How do I know if my air conditioner needs service?
It needs servicing if it has not been serviced in 12 months, blows weak or warm air, makes new noises, smells musty, leaks water inside, or your power bills have risen without a change in how you use it.
Why is my air conditioner blowing warm air?
The most common causes are dirty filter, low refrigerant from a leak, or a failing compressor or capacitor. Clean the filters first. If the air is still warm after an hour, switch it off and call a technician.
Why is my air conditioner leaking water inside?
Usually the drain line is blocked, or the coil is dirty and icing up. Switch the system off to stop more water escaping and call a technician. Ignoring it can damage walls, ceilings and electrical parts.
How often should I clean the filters?
Every two to four weeks the system runs daily, and at least once before summer. Slide them out, vacuum or rinse them in lukewarm water, dry them completely and refit them.
What temperature should I set my air conditioner to in summer?
24°C is a good balance of comfort and cost. Each degree lower can add roughly 10% to running costs and setting it very low does not cool the room any faster.
Is it worth servicing an old air conditioner?
Usually yes, if it is under about 12 years old and still cools well. A service can catch small faults and extend its life. If it is 12 to 15 years old and breaking down often, ask for a repair-versus-replace quote.
Can I service my air conditioner myself?
You can clean the filters, clear the area around the outdoor unit and check the settings. Cleaning the coils, checking refrigerants, testing electrical parts and clearing drains should be done by a licensed technician.
What should I do if my air conditioner stops working during a heatwave?
Switch it off, check the circuit breaker and clean the filters, then restart it. If it still does not work, call a technician and ask for the earliest booking. Meanwhile, close curtains, use fans and stay hydrated, especially if you have young children, older people or pets at home.
Does regular service lower my power bill?
Yes, in most cases. Clean filters and coils let the system move air and heat efficiently, so it does not run as hard or as long to reach the same temperature.
Why Does My Air Conditioner Keep Turning On and Off?
Some cycling is completely normal. Modern inverter air conditioners adjust their output as the room approaches the set temperature. However, if the system repeatedly starts and stops after very short periods, something may need attention.
Possible causes can include:
- incorrect settings
- restricted airflow
- sensor or control problems
- the system being significantly oversized for the room
- other technical faults
If it happens frequently and the room isn't staying comfortable, have the system assessed.
What Temperature Should I Set My Air Conditioner to in a Geelong Summer?
For most homes, 23–26°C is a sensible summer range. There is usually little benefit in setting the air conditioner to 18°C simply because the day outside is very hot.
A moderate setting can keep the home comfortable without asking the system to maintain an unnecessarily large temperature difference. Your ideal setting will still depend on:
- personal comfort
- humidity
- the property
- insulation
- whether elderly people, young children or vulnerable occupants are present
Comfort comes first, but small thermostat changes can make a difference to energy use.
Book your pre-summer air conditioner service in Geelong
Don't wait for the first 38°C day to find out your air conditioner isn't ready. Climatic Air Conditioning services and repairs split, multi-split and ducted systems across Geelong, the Bellarine and the Surf Coast, and is a Mitsubishi Electric Diamond Dealer.
• Call: (03) 5223 2988
• Hours: Monday to Friday, 8am to 5pm
• Where: Unit 2, 112 Balliang St, South Geelong
• Online: Request a service or a quote
Author: Paul Brooks, General Manager, Climatic Air Conditioning
Last Checked: 06/11/2026
