Industrial maintenance diagnostics
Diagnostic Expert is a company that builds Excel based diagnostic tools and provides hands-on troubleshooting and reliability analysis services for industrial maintenance teams. The tools turn guesswork into a documented process, and the services put that same structured thinking to work directly on your equipment.
Without a documented process, technicians often guess and swap parts, skip safety and quick checks, and rely on tribal knowledge that leaves the business the moment someone does. Maintenance data piles up in logs and spreadsheets without ever turning into a KPI, a risk score, or a clear priority list.
Each product turns a maintenance activity, troubleshooting, reliability tracking, Pareto or FMEA/AMDEC risk analysis, into a documented Excel workbook with guided steps, built-in checks and an automatic result. The services apply the same structured, evidence-based approach directly to your equipment and your data.
Real screenshots from the Diagnostic Expert product line, the same workbooks sold today on Etsy and Gumroad.
Troubleshooting Diagnostic Tool: pick a category and symptom, get a documented root cause and recommended action.
Maintenance Pareto Analysis: a self-sorting Pareto table finds the few failure modes causing most downtime.
MTTR and MTBF Calculator: failure records become MTTR, MTBF, availability and downtime KPIs.
Maintenance Reliability Toolkit PRO: assets, work log, reliability KPIs, FMEA/AMDEC and action plans in one workbook.
V1.1
Technicians often guess and swap parts, skip safety and quick checks, and rely on tribal knowledge instead of a documented process, leaving no record of what was actually diagnosed.
V1.1
Maintenance data is often scattered across notebooks and disconnected spreadsheets, with no single place to track assets, work history, reliability indicators and risk.
V2.2
A simple failure log tells a team that something broke, but not why it keeps breaking or what to do about it, so recurring failures go unanalyzed.
V2.1
Failure records pile up in a log, but without a consistent way to calculate MTTR, MTBF, availability and downtime, that data never becomes a usable KPI.
V1.1
When many failure modes are recorded, it is hard to tell by eye which ones actually deserve attention first.
When you need the analysis done on your own equipment rather than run it in-house, Diagnostic Expert offers six services built on the same methods behind the products above.
Structured, evidence-based troubleshooting when equipment is down and the cause is not obvious.
Tracing a recurring failure back to its underlying cause instead of just its symptom.
Turning failure and repair records into MTTR, MTBF, availability and downtime KPIs.
Ranking failure modes by frequency and downtime to find the few that matter most.
Scoring failure modes by severity, occurrence and detection to prioritize preventive action.
Remote technical input on an equipment issue, without an on-site visit.
Diagnostic Expert is built on hands-on experience in industrial and rail-sector maintenance and fault troubleshooting environments: electrical and industrial systems, corrective and predictive maintenance, MTTR/MTBF and KPI monitoring, and Pareto analysis. That background shapes every product and service on this site.
Tell us about the equipment, the symptoms and what you already know. Jawad will review your request and follow up by email.