I was called to a home to diagnose a communication issue with the outdoor unit. Upon arrival, I found that the wire connecting the outdoor unit to the indoor unit was damaged. I informed the customer of the issue and suggested that they replace the damaged wire to prevent further communication problems. The customer agreed to replace the wire if the issue occurred again. I provided the customer with an estimate for the replacement wire, but I could not find it in the books. The customer was satisfied with the diagnosis and agreed to replace the wire if necessary.
