Contactor Replacement Cost — AC & Heat Pump (New Zealand, 2026)
Estimated $190–$1,600 NZD for a contactor replacement in New Zealand, depending on the HVAC system and the exact fault. Built from 4 sourced repair jobs across 3 HVAC types — each row keeps its own sources. Reviewed July 2026.
What a contactor 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 | Contactor / relay replacement | Outdoor unit contactor or control relay replaced on an older fixed-speed split or a light-commercial ducted unit | $20–$140 NZD | $200–$560 NZD | Pro recommended |
| Central Air Conditioning | Contactor / relay replacement | Outdoor inverter PCB replaced where the unit has no discrete contactor and the board does the switching | $340–$730 NZD | $750–$1,600 NZD | Pro recommended |
| Ductless Mini-Split | Outdoor unit not running | Contactor or run capacitor replacement in the outdoor unit | $15–$120 NZD | $200–$450 NZD | Pro recommended |
| Thermostat & Controls | Heating or cooling won't shut off | Welded contactor, relay or fan-centre replacement so the unit stops running with the controller off | $20–$130 NZD | $190–$560 NZD | Pro recommended |
Base: published rates from 24 NZ repair companies · National base ranges — localize any figure on its linked problem page · Reviewed July 2026 · Estimated (GST-inclusive)
Related HVAC cost guides
The full cost guide for each HVAC system a contactor 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).