Just took over job no print 4 car group.Cars keep going on fire return to main landing about 4 or 5 times a day.So we replaced all smokes an problem went away for month or so.Other company put voltage monitor on 110 circuit.Have checked key switch in hall station everything tight an reads good latching smokes an no smoke detector active.Also no service tool yet getting one.My thought is maybe a power supply in controller or cross connect but don't know would each cars power supply take over when one car shut off.Hope I explained this enough.
