Help! Simple humidifier question

[mystang52]

I have an Aprilaire furnace humidifier. I just put in new filter, connected the water line to the humidifier, turned on the humidistat, then turned the saddle valve.......and no water coming through.
Do I just need a new saddle valve or did I miss a step somewhere?

 

[Walt34]

Um, is it turned on? Power to the switch?

Seriously, I've seen it happen.

 

[travelover]

Sometimes they are wired to only to run with the furnace fan. Is that running?

 

[mystang52]

Sometimes they are wired to only to run with the furnace fan. is that running?

I think that's it! I just ramped up the thermostat, and when I went downstairs sure enough the water was going. Thanks so much.