New: Field Diagnostic Suite
OEM range comparison, TSA parts catalog diagrams, multi-alarm and symptom diagnosis, refrigeration worksheet, offline manual caching and comprehensive local data backup.
SR-3 Alarm Troubleshooting Library
Browse 94 OEM-indexed alarm sections with interactive diagnostic navigation and links to the bundled SR-3 manual.
🔧 Open the SR-3 alarm troubleshooting library →
Existing Alarm 33/35 trees are also preserved below.
All-in-one technician workbench
The original troubleshooting tree remains below. Open the integrated tools for unit records, multi-alarm worksheets, refrigeration calculations, component lookup, electrical tests, OEM specs, photo notes and 3D orientation preview.
🔧 Technician tools and repair history →
🧩 Components, electrical tests, alarm relationships, specifications and 3D preview →
Interactive Troubleshooting Tree
Choose an alarm and follow the original step-by-step pass/fail diagnostic branches. This is your preserved original diagnostic prototype.
Import OEM manuals
Choose PDFs from Files on your iPhone. Manuals stay in this browser's local storage, not automatically uploaded to Cloudflare. Large PDFs may exceed iPhone storage limits.
Ready. Online connection required for first-time PDF engine load.
Search all manuals
My manual library
PDF viewer
Planned next upgrades
Diagram OCR · verified wiring/parts callouts · full multi-alarm database · symptom trees · OEM specifications · 3D models · AI component assistant. Not yet implemented. Basic multi-alarm worksheet, calculations and technician notes are available under Technician Tools.