What can a technician do if they suspect a faulty piece of equipment?

When a technician suspects a faulty piece of equipment, replacing it with a known working unit for testing purposes is a practical and effective method to diagnose the issue. By swapping the suspected faulty equipment with a functional one, the technician can quickly determine if the problem lies with the equipment itself or if there is an issue elsewhere in the system. This approach allows for rapid troubleshooting without the need for extensive testing or repairs on-site, which can be time-consuming and may not yield immediate results.

This strategy of substitution is commonly employed in many technical fields, where isolating the problem is essential for efficient maintenance and repair. It helps minimize downtime and ensures that services can continue while the technician establishes whether the original piece of equipment is indeed defective.