Common problem
Air Conditioner Not Cooling in Mitcham
When an air conditioner stops cooling in Mitcham, Mitcham Air Conditioning finds the fault fast. We diagnose the real cause, quote a fixed price up front, and get cold air moving again.
A Trusted Local Team for Air Conditioner Not Cooling Repairs in Mitcham
Mitcham Air Conditioning is a family-owned business with ten years on the tools across Greater Adelaide. Homeowners across Mitcham call us first because we turn up, diagnose honestly, and quote before we start.
Why Your Aircon Stops Cooling
A unit that runs but never drops the temperature usually comes down to one of a handful of faults. Some cost almost nothing to fix, and others need licensed hands, so we always rule the cheap ones out first:
Clogged filters
Filters choked with dry summer dust strangle airflow, so the unit hums away while the rooms stay warm. It is the cheapest fix on this list, and a proper clean usually sorts it.
Fouled condenser coils
The outdoor coil sheds heat, and leaf litter from the established gardens around Brown Hill Creek clogs it fast. A fouled coil makes the system work harder and cool less, especially past 35 degrees.
Low refrigerant
Refrigerant does not get used up, so low levels mean a leak somewhere. Handling it is licensed work, and we repair the leak rather than just topping the system up and hoping.
Worn electrical parts
A tired capacitor or a compressor on its way out can hum along without actually cooling anything. These faults turn up most in units past ten years, which many well-kept homes here run well beyond.
Ducts in the roof
In ducted homes, a torn or disconnected duct spills chilled air into the roof space instead of your rooms. The unit itself is often fine, and the fix is simpler than it sounds.
What You Can Safely Check Yourself
Before you book anyone, a few quick checks cost nothing and solve the simple cases. Work through this list:
Filters
Outdoor unit
Controller settings
Doors and windows
If the unit still runs warm after all that, the fault is inside the refrigerant circuit or the electricals, and that is our job.
Do not wait on this
When Cooling Problems Need a Licensed Technician
Some symptoms should never wait, and ice on the pipes is the big one. It points to a refrigerant or airflow fault that gets worse every hour the system runs.
Other warning signs need the same urgency:
- A breaker that keeps tripping, which means an electrical problem rather than a nuisance
- Water where water should not be, such as staining under the indoor unit
- A burning smell, which means switch the system off and call us the same day
Our repairs team handles these faults around the clock, and you can read more on our air conditioning repairs page.
How it works
How We Fix an Air Conditioner Not Cooling Job
The process is simple, and you know the cost before anyone lifts a tool:
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Step 1: You call
Describe the symptom and the system, and we book a time that suits, including urgent callouts.
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Step 2: Onsite diagnosis
We test airflow, temperatures, pressures and electricals to find the actual fault, not a guess.
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Step 3: Fixed quote
You get Fixed Upfront Pricing on the repair before we start. No hourly rates, no bill shock.
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Step 4: The repair
We fix it, test it under load, and leave the work area clean.
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Step 5: The backing
If a fault later traces back to our workmanship, our Lifetime Labour Warranty brings us back at no cost.
Why Mitcham Calls Us for Cooling Repairs
Fixed price, first
Every job is quoted under Fixed Upfront Pricing before work begins, so the figure you approve is the figure you pay.
Fully licensed work
Refrigerant and electrical diagnosis is carried out under ARC Licence L162586, our RAC01 - Full Refrigeration and Air Conditioning Licence, current in SA.
Fast response
Urgent no-cooling faults get a Within-the-Hour Response where availability allows, and we hold 24/7 emergency availability through heatwave season.
Work that lasts
Our Lifetime Labour Warranty means a workmanship fault gets fixed free, and our 500+ five-star reviews reflect how we finish a job.
Questions
Air Conditioner Not Cooling FAQs
Why is my aircon running but not cooling?
Usually a dirty filter or coil, but low refrigerant or a failing compressor produces the same symptom, so a proper diagnosis saves you paying for the wrong fix.
Can I top up the refrigerant myself?
No, refrigerant handling is licensed work, and topping up without fixing the leak wastes money, so a licensed technician needs to find and repair the fault properly.
Is it worth repairing an older system?
Often yes, because most homes here are owner-occupied and units get maintained well past a decade, but when repair quotes approach replacement cost we will say so straight.
How quickly can you attend a no-cooling fault?
Urgent faults get a Within-the-Hour Response where availability allows, and we hold 24/7 emergency availability, which matters when a heatwave pushes Adelaide past 40 degrees.
Talk to a local
Call Your Mitcham Air Conditioning Team Before the Next Hot Spell
A system that cools weakly today usually fails completely on the first 40-degree day, so do not wait for that. Ring (08) 8246 6282 and we will diagnose it properly and quote it fixed. New customers get $50 off first service, and urgent calls get answered any hour.