Key legal question
Whether the service company breached its contractual duties by reattaching the device despite recognizing the risk of the rigid connection.
Extracted holding
Yes. Once the technician recognized that the device should have been connected flexibly, he had to warn the owners and avoid reinstalling it rigidly without clarification.
Extracted reasoning
The purpose of the service contract was to ensure proper functioning. A technician who detects a defect must report it even if checking the original installation was not expressly part of the contract.