Elevators, Escalators & Vertical Transport Equipment calculator

Warranty Exposure Score Calculator

Warranty exposure for vertical transport equipment is driven by passenger entrapment risk, callbacks, nuisance shutdowns, component access, and detection before shipment or turnover. This calculator creates a weighted score for ranking warranty risk across products or projects.

What this calculator does

  • Score warranty exposure for elevator, escalator, or moving walkway equipment using severity, occurrence, and detection ratings.
  • a quality or service manager needs to rank warranty risk before release, shipment, or modernization turnover
  • Returns the warranty exposure score value for the selected vertical transport scope.

Formula used

  • Warranty exposure score = severity × 0.40 + occurrence × 0.35 + detection × 0.25

Inputs explained

  • Warranty severity score: Use a current same-scope value for warranty severity score from the drawing, BOM, route, service record, project estimate, or field plan.
  • Expected callback occurrence score: Use a current same-scope value for expected callback occurrence score from the drawing, BOM, route, service record, project estimate, or field plan.
  • Pre-shipment detection difficulty score: Use a current same-scope value for pre-shipment detection difficulty score from the drawing, BOM, route, service record, project estimate, or field plan.

How to use the result

  • Use it when elevator, escalator, walkway, modernization, service, or manufacturing teams need a defensible planning number before commitment.
  • It does not replace stamped engineering, code compliance review, final traffic analysis, certified test results, or project-specific installation planning.

Common questions

  • What does the warranty exposure score calculator tell me? It gives a warranty exposure score result using elevator, escalator, moving walkway, or modernization assumptions from the same project, unit family, or service period.
  • Which inputs should I use? Use current values from drawings, production routes, service records, supplier quotes, energy bills, inspection logs, or field plans; keep units, scope, and time period consistent.
  • How should I use the result? Use the result to support quoting, production scheduling, installation planning, maintenance reserves, warranty reviews, capacity checks, or purchasing decisions.
  • When is this only an estimate? Treat it as a planning estimate until final site conditions, code requirements, hoistway dimensions, duty cycle, supplier lead times, and field labor productivity are confirmed.

Last reviewed 2026-05-12.