My Ablerex UPS powers equipment normally but everything stops during a power cut. Why?

Applies to: Ablerex UPS installations that fail to sustain the connected load during a real outage.

Work through these checks

1. Record the front-panel mode, alarms and event time after the incident. Distinguish normal online/inverter operation from a bypass indication; do not assume an illuminated display means full backup protection.
2. Confirm the affected equipment is connected to the intended UPS output path. Trace external PDUs and any maintenance-bypass arrangement using the installation diagram, without operating bypass switches.
3. Compare the actual load with the UPS rating and check for battery, overload or fault messages. Note whether a battery was recently replaced, disconnected for service or left insufficiently charged.
4. Arrange an approved test with the responsible administrator or service provider. Protect production workloads and confirm graceful shutdown first. A model-supported self-test or separate controlled test load may be appropriate after the fault is assessed.

Confirm the result

Only a planned successful backup test with a suitable load confirms the intended power path. Record the mode, load and result; do not rely solely on the absence of an alarm after mains returns.

If you need help

Include these details in your ticket: UPS model, front-panel photo, load, alarm/event details, battery history and a simple output/PDU/bypass diagram.

Updated 261107