Cant get dosing pump to work

[Ephraim]

i have only tried the coralife type timers with the pumps so far. I have been apprehensive about buying another timer, worried that the same thing will happen. I dont have much time this time of year for going back and forth to home depot.

One thing i found that might be causing the problem is that the user manual says the pumps run at 230V or 220V (cant remember, its one or the other) and the coralife power bar is 120V. Would this be creating the problem?