"Comfort is a science, diagnostics is an art"
Resolve faults on boilers, air conditioning systems, VRF plants, and heat pumps in half the time. Guided decision trees, mapped error codes, and technical diagrams always at hand.
View Pricing →Vaillant, Baxi, Riello, Beretta, Immergas
Daikin, Mitsubishi, LG, Samsung, Panasonic
Outdoor units, cassettes, ducts, and split systems
Idronici, ibridi, aria-acqua, geotermici
Recuperatori, deumidificatori, torri
Chillers, condensing units, and evaporators
Navigate guided troubleshooting step by step. Every choice leads you to the right cause and solution, without wasting time on manuals.
Enter the code from the display: E1, F0, P4, U4, A5, and many others. You immediately get the likely cause and corrective action from manufacturer manuals.
View electrical diagrams, refrigeration cycles, and P-H charts directly on your smartphone, even on site without a connection.
Integrated calculators: subcooling, superheat, balancing, flow rates, and power sizing. Fully offline and always available in the field.
Contribute to the knowledge base with anonymised cases. Help the community and access historical cases for faster diagnosis of recurring faults.
Scan the unit serial code to instantly retrieve context, installed components, and linked service history.
Ask a technical question: the assistant answers by citing the fault cards and error codes of the handbook, not generic answers taken from the web. Two free questions a day, unlimited with Pro.
Does your company use IndexOS Azienda? Pair your phone with a QR code: voice notes, photos and diagnoses reach the office on their own, already organized by intervention.
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Fixed monthly plan: EUR 4.90 for all apps. Fixed annual plan: EUR 49.00. HVACIQ is included in the full IndexOS plan.
Download the IndexOS app on Google Play: HVACIQ is included.
Available now
Use the app from the browser and install it as a device icon.
Works offlineOn iPhone and iPad, download IndexOS from the App Store, or install the PWA from your Home Screen.
Open HVACIQ in Safari, tap Share, and choose Add to Home Screen. The icon stays on the device and content remains available offline after the first load.