Prentis - HVAC Troubleshooting

Hands-free HVAC troubleshooting by voice. Prentis talks you through diagnosis and repair step by step while your hands stay on the equipment. 473 diagnostic scenarios stress-tested. 18,000+ data points indexed. 146 makes.

Diagnose faster. Catch more work per call. Close with a customer-ready summary.

VOICE-FIRST HVAC DIAGNOSIS
- Talk through the HVAC diagnosis hands-free — Prentis responds by voice so you never stop working
- Snap the nameplate and get model-specific specs, fault codes, and known failure modes
- Step-by-step HVAC troubleshooting in the right order for the unit in front of you
- Model-specific repair steps, not generic troubleshooting procedures
- Reads photos of gauges, P-T charts, wiring diagrams, and nameplates
- Flags refrigerant safety and EPA 608 concerns before you open the sealed system

FINISH FASTER. EARN MORE.
- Spots missed repairs and service opportunities other HVAC technicians walk past
- Customer-ready close-out: critical repairs, recommended work, and observations
- Present findings to the homeowner with confidence — backed by the summary, not from memory
- New HVAC technicians ramp on day one. Experienced techs move faster and catch more per ticket.

HOW PRENTIS WORKS IN THE FIELD
Say the unit or snap the nameplate. Prentis identifies the HVAC equipment and talks you through diagnosis and repair step by step — hands-free, by voice. 30 seconds to start a service call. No typing. No scrolling through manuals. Your hands stay on your tools.

Works by voice so you can troubleshoot hands-free while working on air conditioners, heat pumps, furnaces, mini splits, and packaged units. Reads photos of gauges, P-T charts, wiring diagrams, and nameplates.

TESTED BY THE TRADE
""Technically accurate, logical flow, correct safety prompts. I've been in this trade 30 years. This is the real deal."" — Scott Goulet, Former President, M.E. Flow

""It's like a mentor walking you through the system. A helpful assistant to anybody starting out in this field."" — Ashok Shrestha, Owner, Quick Fix Air Repair

HVAC EQUIPMENT COVERAGE
146 makes across Carrier, Trane, Lennox, Rheem, Daikin, York, and their brand families. Air conditioners, heat pumps, furnaces, mini splits, and packaged units. Residential and commercial HVAC service, troubleshooting, and repair.

Prentis is an AI-powered HVAC troubleshooting and repair tool built for HVAC technicians, HVAC service managers, and HVAC contractors. Whether you are a pre-apprentice running your first service call or a master technician handling complex diagnostics, Prentis adjusts to your experience level. Use Prentis for AC troubleshooting, furnace troubleshooting, heat pump diagnosis, mini split repair, refrigerant charging, and any residential or commercial HVAC service call.

Free to download. Full access requires a subscription.

Recent changes:
Steadier voice conversations, a job-site location on each new job, and fixes for crashes and dropped connections.