Elevators, Escalators & Vertical Transport Equipment worked example

Warranty Exposure Score with warranty severity score of 4 score: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop warranty severity score to 4 score, then walk the calculation through step by step. Score warranty exposure for elevator, escalator, or moving walkway equipment using severity, occurrence, and detection ratings.

The inputs for this scenario

  • Warranty severity score: 4 score (the input this scenario stresses; the baseline uses 8)
  • Expected callback occurrence score: 5 score (held at the documented default)
  • Pre-shipment detection difficulty score: 4 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Warranty exposure score = severity × 0.40 + occurrence × 0.35 + detection × 0.25.
  • Warranty exposure score works out to 4.35 score at these inputs, and this is the headline figure for the scenario.
  • Warranty severity score works out to 4 score at these inputs.
  • Expected callback occurrence score works out to 5 score at these inputs.
  • Detection difficulty score works out to 4 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where warranty severity score sits at 8 score and the headline result is 5.95 score, this scenario comes in 26.89% below the baseline at 4.35 score.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to warranty severity score, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. Scores are judgment-based on a 1-10 scale, so they rank relative risk well but are not a dollar forecast of warranty cost.

Results at a glance

  • Warranty exposure score: 4.35 score (headline result)
  • Warranty severity score: 4 score
  • Expected callback occurrence score: 5 score
  • Detection difficulty score: 4 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Warranty Exposure Score calculator, set warranty severity score to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.