setting the off delay @ 'Bathroom Fan' @ switches to 2700 seconds should do the trick I'll try that. I considered doing it previously, but I was concerned it wouldn't allow me to manually turn the fan off when I wanted, preempting the "off delay" if you will. Edit: It works! Thanks for the solution ...

Hmm. I don't know enough to say that's not the case. But it doesn't seem the script runs every two minutes...only that it waits two minutes to complete the "set" command. Right?

Also, that doesn't explain why it works when the timer is set to less than 60 seconds.

My goal is to have a switch turn off 30 minutes after I turn it on. The Blockly automation I show here works up to 60 seconds (and perhaps slightly more), but doesn't work when set for 120 seconds or higher. What's going on...is a max number of seconds a known limitation of this command? bathroom ...