Heat Pump Defrost Control Board Replacement Cost (U.S., 2026)
Estimated $200–$650 for a defrost control board replacement in the U.S., depending on the HVAC system and the exact fault. Built from 3 sourced repair jobs across 1 HVAC type — each row keeps its own sources. Reviewed July 2026.
What a defrost control board 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 |
|---|---|---|---|---|---|
| Heat Pump | Not heating | Defrost control board replacement | $25–$250 | $200–$650 | Pro recommended |
| Heat Pump | Stuck in defrost / frozen outdoor unit | Defrost control board replacement | $25–$250 | $200–$650 | Pro recommended |
| Heat Pump | Defrost control board replacement | Defrost control board replacement | $25–$250 | $200–$650 | Pro recommended |
Base: 1 published national repair-cost guide (full source registry on the methodology page), published rates from 5 local 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 defrost control board 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).