Kernrechtsfrage
Whether the furnace had an essential non-conformity justifying avoidance of the CISG contract and restitution of the advance
Extrahierter Entscheid
The buyer failed to show a non-conformity of the required seriousness; only a minor, easily repairable defect remained, so avoidance was not justified.
Extrahierte Begründung
The cantonal court established that the alleged defects were absent, except for one minor defect. On the established facts, the contract requirements under the CISG were not violated in an essential way.