Heat Exchanger, Coil & Radiator Manufacturing worked example

Warranty Exposure with field failure severity of 15 score: a worked example in heat exchanger, coil & radiator manufacturing

This scenario runs the warranty exposure calculation on the strong side: field failure severity of 15 score, with every other input held at its documented default. Use it when leak risk, corrosion, vibration fatigue, fin damage, pressure failures, gasket issues, or field returns need to be ranked before corrective action.

The inputs for this scenario

  • Field failure severity: 15 score (raised for this scenario; the documented default is 6)
  • Expected warranty occurrence: 4 score (unchanged)
  • Pre-shipment detection risk: 3 score (unchanged)

Working through the calculation

  • Applying the documented formula (Warranty exposure score = field failure severity × 0.40 + expected warranty occurrence × 0.35 + pre-shipment detection risk × 0.25) to the inputs above produces each figure below.
  • At this operating point the engine returns 8.15 score for warranty exposure score, the number this scenario is built around.
  • At this operating point the engine returns 15 score for field failure severity.
  • At this operating point the engine returns 4 score for expected warranty occurrence.
  • At this operating point the engine returns 3 score for pre-shipment detection risk.

How this compares with the baseline

  • Against the tool's baseline example, where field failure severity sits at 6 score and the headline result is 4.55 score, this scenario comes in 79.12% above the baseline at 8.15 score.
  • Use it during design review, PPAP, or program ranking to flag which heat exchanger lines warrant tighter end-of-line leak and pressure testing. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Warranty exposure score: 8.15 score (headline result)
  • Field failure severity: 15 score
  • Expected warranty occurrence: 4 score
  • Pre-shipment detection risk: 3 score

Run it with your numbers

  • Every input above is editable in the live Warranty Exposure calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.