Common problem
Air Conditioner Not Cooling in Klemzig
When your air conditioner stops cooling in Klemzig, Klemzig Air Conditioning finds the fault fast and quotes fixed before any work starts. Call (08) 8246 6282 and we will have someone on it.
A unit that runs but blows warm is one of our most common callouts across Klemzig, and it spikes every time a heatwave stacks hot days back to back. The good news is that the cause is often simple.
Why Your Aircon Stops Cooling on Hot Klemzig Days
Most of the suburb's homes are post-war brick and brick-veneer builds, and solid brick holds heat late into the evening. A struggling unit works harder for longer through that stretch, so small faults turn into no cooling at all.
There are a handful of usual suspects, cheapest first:
Choked filters
Dirty coils
Wrong mode or settings
Low refrigerant
Failed capacitor or compressor
If your unit is actually blowing warm air rather than weak cool, our air conditioner blowing warm air page covers that fault in more detail.
How it works
Safe Checks Before You Call
Two checks cost you nothing and fix a fair share of these jobs. Start there before you book anyone.
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Step 1: Clean the filters
Open the indoor unit, slide the filters out and rinse them under a tap. Let them dry fully before refitting.
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Step 2: Clear the outdoor unit
Leaves and dust against the condenser choke airflow, so give it a metre of clear space and a gentle hose down.
If the unit ices over while you are checking, stop and leave it to thaw. A frozen system is its own fault, and our air conditioner frozen page explains why running it on only makes it worse.
Do not wait on this
When to Call for Air Conditioning Repairs
Call a technician once the filters are clean and the unit still will not cool. Anything past that point involves refrigerant or electrical work that only a licensed tech can legally touch.
Ring us sooner rather than later if you notice any of these:
- The breaker trips every time the unit starts
- Hissing near the indoor or outdoor unit
- The compressor never kicks in at all
- Cooling that fades within minutes of startup
We hold RAC01 - Full Refrigeration and Air Conditioning Licence under ARC Licence L162586, so refrigerant handling is squarely within what we do. Urgent faults get a Within-the-Hour Response where availability allows, and we run 24/7 emergency availability through the worst of summer.
How We Fix Poor Cooling
Every job starts with diagnosis, not guesswork. We test airflow, check temperatures across the coil, verify the refrigerant charge and test the electricals, then tell you plainly what is wrong.
You get a fixed quote before any work starts under our Fixed Upfront Pricing. No hourly rates, no bill shock, and no surprises when the invoice lands.
Most faults are fixed on the first visit.
Older units get an honest verdict.
Evaporative owners, one extra note.
Questions
Air Conditioner Not Cooling FAQs
Why does my air conditioner run but not cool?
Most often a choked filter or coil is starving the airflow, though low refrigerant, a tired compressor or a failed capacitor will do the same in the brick-veneer homes around T.K. Shutter Reserve.
Can I fix an aircon that is not cooling myself?
You can safely clean or replace the filters and check the outdoor unit is clear, but anything involving refrigerant, wiring or the compressor needs a licensed technician by law.
How much does it cost to fix a unit that is not cooling?
It depends on the fault, so we diagnose first and give you a fixed quote under our Fixed Upfront Pricing before any work starts, with no hourly rates and no bill shock.
Should I repair or replace a unit that barely cools?
If the system is past fifteen years old, needs repeat callouts or has a discontinued compressor, replacement usually costs less than another repair, and we will tell you honestly which side your unit falls on.
Talk to a local
Get Your Cooling Back Today
A unit that will not cool through a 40-degree run is not a wait-and-see problem. Call (08) 8246 6282 now, tell us what the system is doing, and we will book a diagnosis with a fixed quote before any work starts. New customers get $50 off first service.