I have a level 10 Simbot Gardener, and used to carefully avoid them gardening/harvesting at the time the sprinklers auto-watered.
But eventually realised, that if the sprinklers are watering the garden, Simbots don't short out - manual or auto-watering
BUT they will definitely short out if they 'play with sprinkler/water toys'
In another garden, the family all complained they couldn't play in the sprinkler, and somehow my random planting had blocked access to it - I didnt bother moving anything as playing in the sprinkler definitely seems like one of those things my sims like to go and do when I'm looking for them to do something else, like wash the dishes!!
Looking for Simport friends