“Our split stopped cooling in a heatwave. FreshDuct found a leak on the outdoor unit, repaired it and re-gassed it — icy cold again the same day.”
Verified
Carlton is student rentals, tight Victorian terraces and apartments, mostly cooled by a single hard-worked wall split. When one stops cooling mid-semester, FreshDuct diagnoses the fault fast and coordinates access with tenants or agents — capacitor, drain, gas or board, all major brands.
A single wall split doing all the work fails on the hottest day — usually a capacitor or drain, both quick fixes.
Carlton is dense inner-city living — heritage Victorian terraces, converted flats and student apartments packed around the university and Lygon Street. Cooling is usually down to a single wall-mounted split doing the whole job, run hard by a full household through summer and given no help from a second unit.
That constant load is what wears these systems out. A capacitor cycling all day eventually gives up, a condensate drain clogs and trips the safety switch, or the charge slowly drops on a long line-set — and because one unit is carrying everything, a single fault leaves the whole place with no cooling. We diagnose the cause quickly and get the one system that matters back to work.
The faults we see most on Carlton split systems — based on the local homes, install styles and conditions.
With one split cooling a whole Carlton flat, a single fault takes out the lot. We run a full diagnosis — charge, capacitor, fan motor and board — to find the cause fast and get the only unit in the place going again.
A single split run flat out every hot day wears its capacitor and outdoor fan motor first. When they weaken the unit cools poorly or trips; we test both and fit common replacements on the spot where we can.
A clogged condensate drain trips the float switch and stops the unit, or drips inside — easily mistaken for a gas fault. We clear the drain line, check the tray and switch, and confirm it is draining before moving on.
Real photos from FreshDuct split-system diagnostics, refrigerant work and repairs. We document every job with clear before-and-after photos.



One local team for the whole system — from a not-cooling diagnosis and re-gas to parts, board repairs and an annual tune. Need a hygiene clean instead? We do that too.

Not cooling or heating? We fault-find the whole system — refrigerant, electrics, sensors and board — and tell you plainly what it needs.
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Low on refrigerant means a leak. We pressure-test, find and repair the leak, then re-gas to the correct charge — not just a top-up.
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A full service and tune — pressures, electrics, capacitor, fan and drain checked so the system runs efficiently and reliably.
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Capacitors, fan motors, PCBs, sensors and contactors sourced and replaced for all major brands, with a clear quote first.
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Need a hygiene clean instead? Deep coil and barrel-fan cleaning, mould treatment and sanitising for cleaner, healthier air.
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Ducted, evaporative and multi-head systems too — one local team for heating, cooling and ventilation across Melbourne.
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When a Carlton flat’s single split stops cooling there is no backup, so we work quickly to find the cause. We run the unit, read any error code, and check the capacitor, outdoor fan motor, condensate drain and refrigerant pressures in turn, since any one of them can shut down a hard-worked wall split.
The usual answers are a tired capacitor, a blocked drain tripping the safety switch, or a slow leak that has dropped the charge. We fit the failed part or clear the drain on the spot where we can, or repair and re-gas a leaking circuit, then run the system through a full cycle so the household is not left sweating through the next hot night.
FreshDuct repairs and services split systems throughout Carlton and Carlton North, and we are frequently on jobs nearby in Fitzroy, Brunswick, Richmond and Northcote, so a Carlton call slots easily into the run.
From the terraces around Lygon Street to the student flats near the university and Rathdowne Street, we coordinate access with tenants and agents and will prioritise a household left with a single dead unit in a heatwave.
A methodical diagnosis and repair — we find the actual fault, quote it clearly, and fix it right the first time.
We run the system, read any error codes and test the electrics, sensors and refrigerant pressures to find the real fault, not just the symptom.
If it is low on gas we pressure-test to find the leak — a re-gas without fixing the leak just fails again in a season.
You get a clear, itemised quote before any part is fitted — capacitor, fan motor, PCB, sensor or a re-gas, with honest advice on repair-versus-replace.
We fit the part, repair the leak and re-gas to the manufacturer charge, then re-test cooling and heating output.
Electrics, contactor, fan, drain and airflow checked and tuned so the system runs efficiently and reliably.
A clear report with photos and honest advice on whether to keep servicing or plan a replacement.
Verified 5-star reviews from across FreshDuct’s split-system, heating and cooling services.
“Our split stopped cooling in a heatwave. FreshDuct found a leak on the outdoor unit, repaired it and re-gassed it — icy cold again the same day.”
Verified
“Bedroom head was throwing an error code and shutting down. They diagnosed a faulty PCB, quoted it and had it running the next visit.”
Verified
“Honest team — the outdoor fan motor had failed and they replaced it rather than pushing a whole new system. Saved me a fortune.”
Verified
“Great communication. They tested the capacitor and pressures, showed me the readings and explained exactly what was wrong.”
Verified
“Multi-head system, one room never cold. They tracked it to a blocked drain and low charge on that circuit and sorted both.”
Verified
“Quick, professional and tidy. The report and photos showed exactly what they checked and fixed on the unit.”
Verified
We cover Carlton and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
When one unit cools the whole place we treat it as a priority and aim to diagnose it on the visit. The common causes — a worn capacitor, a blocked drain or a slow gas leak — are things we can often repair on the spot, so in many cases the only split in the flat is cooling again the same day rather than waiting on parts.
Yes. We deal with Carlton’s student and rental turnover all the time, so we set a time directly with the tenants, carry out the diagnosis and repair, and report back to you on the fault and the fix. That keeps a single-unit repair simple for owners and agents who are managing several properties at once.
Yes. FreshDuct diagnoses and repairs split systems across Carlton and the surrounding inner city, 7 days a week — not-cooling and not-heating faults, re-gas and leak detection, error codes and parts for all major brands. Call 04 3191 8137 or request a free quote.
It is usually one of a few things: low refrigerant from a slow leak, a failed capacitor or fan motor on the outdoor unit, a blocked filter or coil, or a fault on the control board. We diagnose the actual cause rather than guessing, and quote the repair before we start.
We do, but a split system is a sealed circuit — if it is low on gas it has a leak. A top-up alone just leaks out again within a season, so we pressure-test to find the leak, repair it, then re-gas to the correct manufacturer charge.
It depends on the age, the brand and the fault. A capacitor, fan motor or sensor on an otherwise sound unit is well worth repairing; a failed compressor or a leaking coil on a 12-to-15-year-old system often is not. We give you honest, itemised advice either way.
Not-cooling & not-heating diagnostics, gas re-gas and leak detection, error-code faults, capacitor, fan-motor and board repairs, and an annual tune — a clean, documented service with photo proof. Available 7 days.
Tell us the fault and your split system — we respond fast, 7 days.