Sounds like a safety feature I would be catious about circumventing.
If it is a button, you should be able to go behind it and short the wire. Prior to doing this permanently, though, I would take a shorting wire (short wire with a roach clip, I mean ALLIGATOR clip at each end) and short it out that way. If everything runs fine after that, then go permanent.
NOTE: Modifying safety features will normall void your warranty. Make sure it is reversable, just in case.