Preserve the useful detail
Record hot-side results at several fixtures, safe wait and temperature, error indicators, outages, and equipment type.
The decision on display
Do not transfer the hazard
Do not relight, bypass a safety, open panels, or work near gas or wet electrical components.
Make the proposed work comparable
Ask for tested conditions, measurements, failed or uncertain components, parts, permit work, safety checks, and fixture-level confirmation.
CURRENT PRIMARY SOURCE