Route active water first. Put significant leakage, a wet ceiling, water near electrical equipment, sagging material, or unsafe attic access on an urgent professional path. Give only safe, bounded shutoff guidance.
Capture the symptom. Request safe photos of the equipment exterior, visible pan, drain outlets, ceiling or floor area, thermostat message, and unit label, plus when the leak starts and whether cooling stops.
Explain differential diagnosis. Show how a technician distinguishes pan failure from a blocked or disconnected drain, failed pump, frozen coil, sweating surfaces, roof or plumbing water, and other equipment leakage.
Define the pan and access. Identify primary versus auxiliary pan, compatibility, dimensions, outlet position, support and pitch, float switch, drain connection, equipment movement, disposal, permits where applicable, and exclusions.
Set quote boundaries. Separate diagnosis, drain clearing, pan replacement, coil or cabinet work, pump or switch work, refrigerant handling, access restoration, and water-damage repair. Avoid universal prices when configuration is unknown.
Verify and document. Require a drainage test appropriate to the system, switch test, dry-area check, photos, part record, warranty terms, and a written note of unresolved moisture or building damage.