HVAC Diagnostic App Built for Technicians
PACO HVAC PRO helps HVAC technicians run structured diagnostics in the field. Describe the symptom, follow guided troubleshooting, and document findings without leaving the job site.
Guided troubleshooting that fits real calls
Field diagnostics rarely follow a textbook path. PACO’s Smart Diagnostic Assistant supports symptom-based troubleshooting so you can move from complaint to likely causes with clear next checks.
Use it for no-cool, no-heat, short cycling, strange sounds, and other common service calls — then capture notes for the customer and the office.
- Symptom-driven diagnostic workflows
- Suggested checks tailored to the situation
- Works on Android, iOS, and web
- Keeps diagnostic notes with the job record
Built for technicians, not generic chatbots
PACO is an HVAC field operating system. Diagnostics sit next to jobs, equipment records, reports, and invoices so troubleshooting does not live in a separate notebook or text thread.
Contractors and managers get clearer documentation of what was checked and recommended — without inventing manufacturer affiliations or unsupported claims.
How it fits your service workflow
Start a job, open diagnostics when the equipment does not behave as expected, then finish with a service report or invoice. The goal is fewer callbacks and clearer communication with customers.
Frequently asked questions
Is PACO an HVAC troubleshooting app?
Yes. PACO HVAC PRO includes guided diagnostic and troubleshooting tools designed for HVAC technicians working on residential and light commercial equipment.
Does the diagnostic app work offline?
PACO is built with field use in mind. Core job workflows are designed for mobile use; connected diagnostic features that process complex field information may require connectivity depending on the tool.
Who is the HVAC diagnostic app for?
Independent technicians, contractor teams, and HVAC service companies that need structured troubleshooting alongside job management and reporting.
Try HVAC diagnostics in PACO
Start free or open the interactive demo to see guided troubleshooting in action.