# Parts-first diagnosis

A term used when buying appliance repair.

Diagnosing before the [truck rolls](https://searchspheresource.com/glossary/truck-roll) so the right part rides on the first visit.

Every truck roll without the right part turns one job into two, and the second visit is the margin leaving. Shops that diagnose by phone or photo before rolling load the van for the fix and complete on the first visit far more often. Ask how dispatch decides what rides on the truck, because that answer is the operating system a buyer inherits, and a seller who cannot state a first-visit completion rate has not measured the cost of a second trip.

Part of: Buying an Appliance Repair Business (https://searchspheresource.com/guides/buying-an-appliance-repair-business)

Source: https://searchspheresource.com/guides/buying-an-appliance-repair-business/terms/parts-first-diagnosis
Not dated: The same editorial definitions as the glossary, inside a trade.

Site index for machines: https://searchspheresource.com/llms.txt