Diagnosing oscillating subcool in a 3-year-old AC system with TXV and ECM air handler, where subcool predictably rises and falls without clear cause.

Current diagnostics lack clear guidance for intermittent refrigerant flow issues like TXV hunting or non-condensables, leading to time-consuming trial-and-error.

Severity

3Medium

Willingness to Pay

implied

Added

Jun 18, 2026

Implied Software Gaps

Diagnostic software that can identify intermittent TXV hunting or non-condensable gases from subcool oscillation patterns

App Concept

HVAC DiagPro

An intelligent diagnostic app that analyzes real-time HVAC data (subcool, superheat, pressures) to pinpoint root causes of erratic refrigerant behavior. Uses pattern recognition to differentiate between TXV hunting, non-condensables, and other faults, providing step-by-step troubleshooting.

Key Features

Real-time data logging and pattern analysis
AI-driven fault diagnosis for refrigerant circuit issues
Step-by-step troubleshooting guide with refrigerant charge calculator
Integration with common manifold gauges and wireless sensors

Target Users: HVAC service technicians and contractors who diagnose and repair residential and light commercial air conditioning systems

Revenue Model: $19.99/mo per technician subscription with a free tier for basic diagnostics

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