Spent four hours chasing a phantom door lock fault at the Grandview apartments
The call was for a door not closing, but the lock kept showing a fault code that made no sense. I checked every sensor and wire from the cab to the machine room, twice. Turns out a tiny piece of broken plastic from a tenant's moving box was wedged in the sill, just enough to trick the system. Ever have a simple job turn into a half-day puzzle because of something silly like that?