You might want to provide us with some helpful information such as the type of boiler, type of zone valves and the controller.
Pressing the reset button can't hurt anything but if Zone 2 is working and Zones 1 & 3 are not you don't have a boiler issue. Has anyone recently done any work in your house? Perhaps they upset the wiring to the transformer. Are the ball valves for zones 1 & 3 open?
We really need more information.