Service technicians cannot find replacement R410A evaporator coils under warranty and are unsure if retrofitting an R32 coil with an R410A TXV is safe or acceptable.

No clear guidance or approved solution exists for replacing a failed R410A evaporator coil with an R32 coil modified with an R410A TXV, and manufacturers (Goodman) advise against it, leaving technicians with an expensive and wasteful alternative (selling a new condenser).

Severity

4High

Willingness to Pay

implied

Added

Jun 5, 2026

Implied Software Gaps

A compatibility database with manufacturer-approved retrofit guidelines for evaporator coils and TXVs

App Concept

CoilSwap Navigator

An interactive decision-support app for HVAC technicians facing warranty coil replacements. It provides manufacturer-approved retrofit guidelines, real-time inventory of compatible coils, and a step-by-step validation process that ensures system integrity. Technicians can input coil model, refrigerant type, and warranty status to receive safe, cost-effective replacement options.

Key Features

Model-specific compatibility database for evaporator coils and TXVs
Step-by-step retrofit validation with safety checks
Warranty status lookup and manufacturer policy summaries
Part substitution recommendations with installation instructions

Target Users: HVAC service technicians and contractors, especially those replacing warranty evaporator coils in residential and light commercial systems.

Revenue Model: $19.99/mo subscription for technicians, with a free tier limited to 5 lookups per month.

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