I'm having trouble with a heat gun. I work at a work station that is on the same, what appears to be, 20 amp breaker. Theres 3 workstations. All are plugged into 1 outlet. If I dont have all of the lights on the heat gun won't heat up. They are florescent lights so I'm guessing something has to do with the balusters. Just to reiterate. When I turn the lights ALL ON the heat gun works. When I shut one or more off, it stops heating up. Any ideas on why this happens?