Yes, It is very much possible that there is some Vastu imbalance if machines are having frequent breakdowns.It is important to mention here that Vastu Shastra doesn't recommend any demolition on the name of Vastu dosha removal. Vastu dosha, if any can be eliminated without any deconstruction or demolition. Simple relocations, alignments and colour thearpies and space purifying techniques can do wonderful improvement not just for machine breakdown but in overall factory processes.