Use records already available
Collect authorized service exports, technician reports or photos of the normal accessible display. Record the equipment reference and capture date. Do not enter restricted menus, clear events or change settings to prepare a sale description. Ask qualified site personnel for records that require technical access.
Preserve the wording and time context
Copy the message or code exactly, including any source timestamp. Explain if the clock or event date is uncertain. Keep historical records separate from an alarm currently visible during an authorized observation. Do not infer that an older entry is still active or that an empty display proves no prior issues.
Pair events with documented follow-up
Link each material event to any inspection, repair or return-to-service report you hold. State when no follow-up evidence is available. Avoid converting a parts invoice into proof that a specific alarm was resolved unless the record establishes that connection.
Let qualified reviewers interpret the evidence
Provide the exact controller and set identities along with the records. Ask the buyer to identify any further assessment needed before confirming its offer. Keep the seller summary factual: event recorded, assessment attached, follow-up documented or unknown. This makes the remaining question clear without inventing a technical explanation.