Compressor Replacement Cost — AC, Heat Pump & Mini-Split (Australia, 2026)
Estimated $450–$7,000 AUD for a compressor replacement in Australia, depending on the HVAC system and the exact fault. Built from 9 sourced repair jobs across 3 HVAC types — each row keeps its own sources. Reviewed July 2026.
What a compressor replacement costs, by HVAC and fault Estimated
Each row is a real sourced repair job whose description matched this part. Parts and total are that job's own national range — follow the problem link to localize it to your area.
| HVAC | Problem | Repair | Parts | Total | DIY |
|---|---|---|---|---|---|
| Central Air Conditioning | Not cooling / blowing warm air | Outdoor condensing unit compressor replaced (recovery, new compressor, filter drier, vacuum, recharge, commissioning) | $1,100–$2,400 AUD | $1,950–$3,800 AUD | Pro recommended |
| Central Air Conditioning | Compressor replacement | Ducted outdoor unit compressor replaced with recovery, new filter drier, vacuum dehydration, pressure test and full recharge | $1,100–$2,400 AUD | $1,950–$3,800 AUD | Pro recommended |
| Central Air Conditioning | Compressor replacement | Legacy R22 ducted system: compressor replaced or whole outdoor condensing unit swapped because the original refrigerant is no longer supported | $2,000–$4,500 AUD | $3,300–$7,000 AUD | Pro recommended |
| Heat Pump | Compressor replacement | Compressor replacement in the ducted outdoor unit | $460–$1,500 AUD | $1,200–$2,900 AUD | Pro recommended |
| Ductless Mini-Split | Not heating | Outdoor control PCB replacement (no heat call reaching the compressor) | $330–$760 AUD | $450–$1,200 AUD | Pro recommended |
| Ductless Mini-Split | Compressor replacement | Compressor replacement in the split's outdoor unit | $457–$1,213 AUD | $1,100–$2,500 AUD | Pro recommended |
| Ductless Mini-Split | Compressor replacement | Compressor changeout on a smaller wall-mounted split (2–3.5 kW class, cheapest compressor and fittings kit) | $457–$989 AUD | $600–$1,500 AUD | Pro recommended |
| Ductless Mini-Split | Error code / flashing light fault | L5 / E5 inverter overcurrent or compressor lock: inverter PCB replacement (or condemn the outdoor unit) | $330–$1,810 AUD | $520–$2,400 AUD | Pro recommended |
| Ductless Mini-Split | Outdoor unit not running | Outdoor control PCB replacement (no output to compressor or fan) | $330–$930 AUD | $500–$1,400 AUD | Pro recommended |
Base: 1 published national repair-cost guide (full source registry on the methodology page), published rates from 44 Australian repair companies · National base ranges — localize any figure on its linked problem page · Reviewed July 2026 · Estimated
Related HVAC cost guides
The full cost guide for each HVAC system a compressor replacement shows up in:
Estimated national ranges aggregated from the linked problem pages — no per-page localization is applied here. See the methodology for the localization method and named sources.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).