Suppose a 10-hp motor fails. This doesn’t sound like a big deal. A 10-hp motor is relatively inexpensive. So you replace it. But suppose that motor is critical to a production bottleneck that produces $650,000/hr of revenue. Now that 10-hp motor failure sounds like a big deal.
Think about the cost of production loss so you know when to spend more time making sure the repair really solves the failure cause.
Let’s say this motor ran hot. As one astute EC&