What needs to be clarified
Check which technical features and documents support the proposed cause and which circumstances remain assumptions.
Materials to prepare
- Appliance models and serial numbers, diagnostic and repair records
- Original damage photographs and records of when symptoms appeared
- Available information on the outage, connections and previous maintenance
What to compare
- Separate reports of the event from observed damage features
- Compare each appliance’s history without merging different failures in advance
- Identify alternative causes and information missing for their examination
Possible outcome of the analysis
A possible outcome is a report on the examined damage explaining supported causal links and the limits of the answer.
Limits of the conclusions
Simultaneous failure alone does not prove a voltage surge, and examination of a fault’s cause does not replace appliance repair.