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This video ranks the failure modes of a fire-water pump system in ReliaEn, first with FMEA / Criticality, then in an FMEA study you can keep, review and issue.

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FMEA stands for failure mode and effects analysis.

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Each failure mode carries three scores from 1 to 10: severity S, occurrence O and detection D.

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The maintenance team keeps its 7 scored modes in a file.

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Open File and choose Import Data (Excel / CSV / JSON)…

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In Documents, open the V-07 folder, choose FMEA-Criticality-Example-1.csv and press Open.

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The wizard reads 5 columns: Item and Mode as Text / ID, and the scores S, O and D as numbers, 35 valid cells · 0 rejected.

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Press OK.

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Open the System menu and choose FMEA / Criticality…

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In the form FMEA / Criticality, Item column is A.

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Set Mode column to B,

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and the score columns S, O and D to C, D and E.

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No failure rates are given, so ReliaEn ranks by the risk priority number, RPN, which is S times O times D.

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Top-N to highlight stays at 5.

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Press OK — Calculate.

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The top-ranked mode is C: no start signal (RPN 280, 23.0% of total): a silent loss of the start signal is severe and hard to detect.

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The Pareto chart shows the 7 modes in rank order with their cumulative share; the 5 highlighted modes are green.

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The ranked table lists each mode with its scores, its RPN and its share: the diesel no-start at 252, the valve stuck closed at 240, down to the water source running dry at 60.

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ReliaEn adds an honesty rule: RPN multiplies ORDINAL scales — 200 is not "twice" 100, and ties within ~±20% are ties.

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So the first 3 modes, from 280 down to 240, are one group to act on.

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A ranking is a start.

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To keep the FMEA as a document, bring the same modes into a study.

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Import the study's file, FMEA-Study-Example-3.csv, from the same folder,

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and press OK.

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Open System and choose FMEA Study…

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Type a title, Fire pump quick FMEA.

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Template stays at Process FMEA.

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Press New study.

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The columns 0 to 4 already point at item, mode and the three scores.

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Press Import quick FMEA.

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The study opens on the FMEA tab.

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Its header names the study, revision 1, Draft, and the ranking rule.

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Press Worksheet.

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On the Worksheet page, each mode is one row of the study.

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The line above the grid reads 6 of 7 rows meet the action trigger (RPN ≥ 100 or S ≥ 9).

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Scroll right to the RPN and Trigger columns.

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5 rows meet it by their RPN.

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The last row, the water source running dry, meets it by its severity of 10, although its RPN is only 60.

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So the severity rule catches a failure that the RPN alone would rank last.

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From here the study takes corrective actions, verification tests and revisions, and its report is issued from the same tab.

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The next video turns to maintenance decisions: the PM interval, the replacement age and spare parts.