UPS Repairs

ups repairsUninterruptible Power Supply (UPS) Repair Services

(For Commercial and Industrial Power Systems)

UPS repair services involve diagnosing, fixing, and restoring the operation of Uninterruptible Power Supply systems that are damaged, malfunctioning, or degraded. These services are critical for facilities where power reliability and uptime are essential – like data centers, hospitals, telecom, and manufacturing.

What UPS Repairs Typically Include:

1. Diagnosis & Fault Identification

  • Troubleshooting failed startups or shutdowns

  • Checking error codes, alarms, or system logs

  • Verifying input/output voltages and waveform integrity

  • Inspecting communication faults (SNMP, Modbus, etc.)

  • Battery failure or overload conditions

2. Component-Level Repair

Depending on the failure, certified technicians may repair or replace:

Component Common Issues
Power inverters Overheating, failure to convert DC to AC
Rectifiers/chargers Charging failures or voltage irregularities
Control boards Firmware glitches, relay/control logic failures
Fans & capacitors Cooling failures, aging capacitors
Bypass switches Failure to transfer load during maintenance
Battery banks Dead cells, thermal issues, poor runtime

3. Battery Bank Replacement or Repair

  • Testing and replacing VRLA, lithium-ion, or wet cell batteries

  • Verifying float voltages and equalization charge settings

  • Safe removal and environmental disposal of old batteries

4. Firmware Updates & Calibration

  • Updating software/firmware for smart UPS units

  • Recalibrating sensors, alarms, and voltage settings

  • Reprogramming load priority and transfer conditions

5. Environmental & Physical Repairs

  • Cabinet repairs (doors, locks, insulation, air filters)

  • Corrosion remediation (especially in humid or industrial areas)

  • Replacing cabling or damaged terminal blocks

When to Call for UPS Repairs

Symptom Possible Cause
UPS not turning on Battery failure, control board fault
Beeping/alarm sounds Load issue, temperature, battery
Frequent switching to battery Power quality problems or calibration issues
No runtime during outage Dead batteries or inverter failure
Overheating Fan failure or blocked airflow
Communication failure SNMP/Modbus/serial interface board failure

Field Services May Include

  • On-site emergency repair

  • 24/7 response contracts

  • Preventive maintenance (as a service package)

  • Rental or temporary UPS support

  • Load testing and recommissioning

For more information, contact Infra-Red.