About
Built by a mechanic, for the trade
Calculators, guided diagnostics, and guides that show their sources — and the console a shop runs on.
Too much field time gets burned on the phone with manufacturer support, or waiting on a factory tech to drive out for a problem that could have been found on-site. Coldr exists to end that call.
The idea
One app that runs the readings you take against the unit on the nameplate and walks you through diagnostics step by step — with answers specific to that exact unit, not generic ranges. Brand and model-specific fault codes, known failure modes, and manufacturer service notes, deep enough that you diagnose on-site.
Who it's for
The truck and the desk
Technicians
Guided diagnostics, field-grade calculators, cited fault codes, and an AI assistant that only quotes numbers a validated tool ran.
Owners, PMs & supervisors
A desktop command center to run the crew: roles and permissions, shared credits with per-tech limits, and review and sign-off on jobs as they come in.
Process
How we build
- 01Manufacturer literatureOEM documents and published standards
- 02CurationKept or dropped, never guessed
- 03Senior-tech sign-offThresholds reviewed before they ship
- 04FieldIn the app, with the source attached
Calculations are validated against established methodology and shown with their assumptions. Diagnostic thresholds are reviewed by senior technicians before they reach the field. The technician's judgment always comes first — the app is the sharpest tool on the truck, not a replacement for the person holding it.