HVAC technician needs to diagnose whether a compressor or TXV is faulty in a cooling system, lacking a clear diagnostic process for mixed refrigerant oils.

No easy way to distinguish between TXV and compressor failure when the system has been converted to a different refrigerant with incompatible oil.

Severity

3Medium

Willingness to Pay

implied

Added

May 25, 2026

Workarounds Described

Manually comparing pressures to expected saturation temperatures
Using pump down test with caution to check compressor

Implied Software Gaps

Automated refrigerant cycle analysis that compares actual vs expected values
Guided diagnostic flow with integrated knowledge base

App Concept

HVAC DiagPro

A diagnostic assistant app that guides technicians through step-by-step troubleshooting for refrigerant systems. It analyzes pressures, temperatures, and RLA to suggest likely faults and recommends tests, including compatibility checks for refrigerant/oil conversions.

Key Features

Input suction/liquid pressures and temperatures to get fault predictions
Refrigerant/oil compatibility database
Step-by-step diagnostic workflow including pump down test guidance
Log and share diagnostic history

Target Users: HVAC technicians and service companies troubleshooting cooling system issues

Revenue Model: $9.99/mo per technician subscription

Existing Solutions Mentioned

pump down test

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