About
A comprehensive troubleshooting reference for industrial electricians and maintenance technicians. Quickly diagnose common electrical problems with step-by-step guides and a searchable database of fault codes. Includes essential electrical reference tables and calculators.
What's New in Fault Finder Pro
1.1.0
August 3, 2026
What's new in 1.1.0 • Reorder your tabs — press and hold a category on Reference, Tools, or NFPA 70E and drag your most-used sections to the front. Your order is saved. • Save fault codes — tap the star to pin codes, and filter to your saved list. • More drives — added fault codes for ABB (ACS), Schneider Electric Altivar, Danfoss VLT, and Mitsubishi FR. • Rate the app — a quick prompt after you've used the troubleshooter a few times. • Fixes & polish — corrected a Panel/Distribution diagnostic path, the safety disclaimer now appears only on first launch, and cleaned up tab labels and buttons.
MoreFAQ
What kind of electrical faults can Fault Finder Pro help diagnose?
Fault Finder Pro offers step-by-step fault diagnosis for common industrial electrical problems including motor issues, breaker trips, VFD faults, 3-phase power problems, transformer faults, generator issues, and PLC faults for Allen-Bradley models.
Does Fault Finder Pro work offline?
Yes, Fault Finder Pro is designed to be used offline, providing quick access to troubleshooting information without needing an internet connection on the job site.
What specific fault codes can I look up in Fault Finder Pro?
The app includes a searchable database for fault codes from Allen-Bradley PowerFlex VFDs, Fanuc CNC and Robot alarms, Siemens SINAMICS drives, and Yaskawa drives.
What electrical reference tools are included in Fault Finder Pro?
Fault Finder Pro includes an NEC wire sizing table, a 3-phase voltage drop calculator, a conduit fill reference, and 3-phase formulas to assist with electrical calculations.
How accurate is the Ohm's Law calculator in Fault Finder Pro?
The Ohm's Law calculator in Fault Finder Pro allows you to enter any two values and it will solve for the remaining ones, providing accurate calculations for electrical circuits.
What devices is Fault Finder Pro available on?
Fault Finder Pro is available on iPhone, iPad, and iPod devices, as indicated by its supported devices list.
How much does Fault Finder Pro cost?
Fault Finder Pro is a paid application, with a price of $7.99. It does not appear to have any in-app purchases or advertisements.
How often is Fault Finder Pro updated?
The latest version of Fault Finder Pro is 1.1.0, which was last updated on August 3, 2026. This suggests a relatively recent update cycle.