| Product | Chloride EPEM Critical Power UPS |
| Application | Emergency Lighting |
| Synopsis | The client had a power outage, and the load was protected and switched to the generator. However, after the power was restored, the UPS would not come back online from bypass. |
| Preliminary Actions | Visually inspected caps and tested warm batteries. Verified batteries to not to be issue. Adjusted equipment ‘levelers’, moved unit away from wall and removed back panel. Found 3 of the 5 cooling fans not spinning with warm internals. No open fan fuses found. |
| Resolution | Recommending to clients the continuous importance of proper housekeeping and electrical room cleanliness in accordance with codes and regulations, and pro-active replacement of aging cooling fans. |
| Root Cause | Insufficient cooling due to dirty / dusty environment and aging cooling fans within the equipment that needed pro-active replacement prior to the time of failure. |
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