I'm pointing this question towards integrators, but others can answer as well. Do you/have you shown a customer how to resolve minor issues that are easily fixed?
The minor issues I'm mentioning revolve around power cycling, restarts, checking for connectivity and replacing batteries for field devices. I've had a few customers in the past mention that "sometimes, after a power outage, our door system doesn't work", or "Why does our keypad read zone 13 Lo-Batt?". During those calls (which were 99% of the time quick fixes), I'd fix the issue, check for other issues, and be sure the system was in the clear. Additionally, I'd show customer or maintenance personnel how to troubleshoot those issues should they return, and what to look for (i.e. generally, this LED means X, no LEDs mean Y, and this setup of LEDs is bad news).
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