Community Troubleshooting Checklist
Before troubleshooting, ask:
- What is the source?
- What is the load?
- What voltage should be present?
- Is the system AC or DC?
- Is it single-phase or three-phase?
- What current should be expected?
- What protection is installed?
- What device operated?
- Are drawings or manuals available?
- What changed before the problem started?
- Are the correct safety procedures in place?
This is a starting checklist, not a complete procedure for every situation.
What question would you add to the list?
