Diagnose HVAC equipment faults faster with AI-powered error code lookup, blink pattern analysis, and symptom-based diagnosis.
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Three ways to diagnose — pick the one that matches what you're seeing on the job.
Ecobee, Nest, Honeywell, Sensi, Emerson — any error code, any brand, instant diagnosis with step-by-step fix.
Any brand · Any codeDigital error codes and LED blink patterns. Hardcoded database for instant results — AI fallback for edge cases.
Digital + Blink patternsScan the nameplate or enter manually. Describe what you're seeing. Get AI-ranked likely causes with parts, tools, and steps.
Symptom-based AI diagnosisThermostat code, circuit board fault, or no code at all — choose what matches the job.
Type the code, tap the blink pattern, or scan the nameplate and select symptoms.
Ranked likely causes, parts to have ready, tools needed, and step-by-step fix.
Record what fixed it. Build your history. Every job makes the next one faster.
Every plan includes all diagnostic paths, HVAC Tools, job history, and 25 AI calls per tech per day.
✓ 3-day free trial · Card required · Cancel anytime · No contracts
Join HVAC technicians using AirIQ every day on the job. Start your free trial — no commitment required.
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