Two of these anomalies were a loose connection and bad lug in the second phase and a loose connection in the third phase of the main breaker of an HVAC unit. This unit maintained a temperature of 68 degrees F in one of our Production departments. That temperature has to be constant to allow the ink paste in our Substrate Assembly lines to flow with the right consistency. The potential failure of the main breaker could have caused the HVAC unit to fail and therefore raise the temperature in the ink paste machine zone. This would have shut down all Substrate Assembly Production in that department.