Thermocouple Replacement Cost — Furnace & Boiler (Australia, 2026)
Estimated $180–$380 AUD for a thermocouple replacement in Australia, depending on the HVAC system and the exact fault. Built from 2 sourced repair jobs across 2 HVAC types — each row keeps its own sources. Reviewed July 2026.
What a thermocouple 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 |
|---|---|---|---|---|---|
| Gas Furnace | Pilot light / thermocouple won't stay lit | Thermocouple replacement on a standing-pilot heater | $25–$70 AUD | $180–$320 AUD | Pro recommended |
| Boiler | Pilot light won't stay lit | Thermocouple replacement on a standing-pilot boiler or gas heater | $35–$130 AUD | $180–$380 AUD | Pro recommended |
Base: published rates from 12 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 thermocouple 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).