What was found
UNIT WAS RETURNED FOR REPAIR OF AN ELECTRONIC FAILURE. WHEN THE TECH COMMENCED WORK AND REMOVED THE TOP COVER IT WAS DISCOVERED THAT ALL VENTILATION HOLES IN THE TOP COVER WERE COVERED (BLOCKED) ON THE INSIDE SURFACE WITH MASKING TAPE. UPON FURTHER INVESTIGATION IT WAS DISCOVERED THAT ALL THE VENTILATION HOLES IN THE BOTTOM COVER WERE ALSO MASKED OVER (BLOCKED ON THE INSIDE SURFACE WITH MASKING TAPE. BLOCKAGE OF THESE HOLES WILL BLOCK FLOW-THROUGH VENTILATION TO THE INTERNAL CAVITY OF THE UNIT. THERE IS EVIDENCE THAT THE UNIT WAS PREVIOUSLY REPAINTED ON THE OUTER SURFACES.