Electrical outlets shutting down?

I just recently converted my room to 240v by switching out the 15 amp single pole with a 2 pole breaker and using the neutral as the second 120v leg. Then just made sure all the unused outlets on that circuit were bypassed and the connections were pigtailed. I swapped out 2 of the outlets in the grow room with 240v outlets and got 240v timers. voila! Doubled my available power for about $20

Kinda of like what I did too but if you don't know what your doing ...lol don't do it, 240v is kind of a tingly sensation ya know hehe, actually I got everything made for me and wired it myself with a diagram but it's not too hard.

If you have room in your panel run some wire, hook up new circuits. Shits really easy, but confusing as hell til you get it haha. Ive been an electrician for 16 years, kinda just pops in your head one day like OHHHHH.