: Press and hold the OFF (or Power) button for at least 10 seconds . You may hear a "click" or see a brief flash of LEDs.
| Condition | Recommendation | |-----------|----------------| | Unit age < 2 years, under warranty | from APC. Call 1-800-890-4272. | | Unit age 3-5 years, error with batteries removed | Replace the entire UPS – main board repair costs >65% of new. | | Unit age 5+ years, low-value equipment | Recycle responsibly . Internal capacitors and optocouplers are failing. | | High-end (e.g., APC SRT3000XLA) | Repairable – Replace power board (part #0M-2048) or main logic board. | | You see smoke or smell burning | Immediately unplug. Do not attempt repair. Replace unit. |
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If your APC UPS is over 10 years old, a 02000 error may signify the end of its typical lifespan. apc ups power system error 02000 link
In the architecture of professional-grade APC Smart-UPS systems (particularly the SRT and SURT series), is categorized as a critical power system fault.
For critical infrastructure, do not hesitate: replace the UPS. For tinkerers and professionals, use the diagnostic steps above to pinpoint whether it’s a $30 battery fix or a $150 logic board replacement. In all cases, prioritize safety – capacitors inside a UPS can deliver a lethal shock even when unplugged for weeks.
Before attempting any major repairs, check whether your UPS is still covered by the manufacturer's warranty. APC offers varying warranty periods depending on the product line. 3. Contact Professional Support : Press and hold the OFF (or Power)
directly using the front display console's Control Menu .
: System error 02000 often masks secondary, specific hardware event codes. Common sub-codes include Code 111 (Inverter Output High), Code 165 (Output Relay Weld), or Code 179 (Battery Disconnected). Step-by-Step Troubleshooting Checklist
APC units from the SUA, SMT, and BR series will often show Error 02000 if the battery pack is dead shorted. Call 1-800-890-4272
If the internal Replaceable Battery Cartridge (RBC) drops below a specific voltage floor, or if there is a severe loose contact or blown fuse within the battery rail, the UPS will throw error 02000.
When the error occurs, it is frequently accompanied by a secondary 3-digit sub-event code or a descriptive string on the LCD screen, such as:
This resolves transient errors and corrupted display links.
Step 2: Perform an On-Line SRT Logic Reset ("Brain Dead" Method)
Open the battery enclosure and physically disconnect the battery packs to sever all power to the logic board.