Why does my UPS battery runtime drop to 2 minutes after only 2 years?
UPS batteries typically last 3-5 years, but heat, frequent deep discharges, and poor ventilation can kill them in 2 years. Most consumer…
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Data Centers & Server Rooms
Practical, step-by-step fixes for data centers & server rooms problems — 52 published so far.
Why does my UPS battery show a 'replace battery' alert after only 18 months?
UPS batteries often fail early due to high ambient temperature, frequent deep discharges, or incorrect float voltage settings — not just age.…
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Why does my UPS beep repeatedly after a short power outage?
Your UPS beeps after a power outage because its battery is depleted, the self-test failed, or the unit entered a fault state;…
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Why does my UPS keep switching to bypass mode during normal operation?
Your UPS switches to bypass mode because it detects an internal fault, overload, or battery degradation that makes inverter operation unsafe. Common…
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Why does my UPS keep switching to bypass mode unexpectedly
A UPS switches to bypass when it detects an internal fault, overload, or input power outside acceptable range, routing utility power directly…
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Why is my server rack overheating despite CRAC units running at full capacity?
Server racks overheat despite cooling running because airflow is blocked, hot and cold air mix, or the cooling capacity doesn't match the…
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Why is my server room AC running all the time?
Your server room AC runs constantly because it can't keep up with the heat load or the thermostat is set too low.…
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Why is my server room cooling system running constantly but the temperature keeps rising?
Your cooling system runs nonstop because the heat load exceeds its capacity, airflow is blocked, or refrigerant is low — check for…
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Why is my server room cooling system running constantly?
Your server room cooling system runs constantly because it can't reach its setpoint, usually due to insufficient capacity, poor airflow, a stuck…
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Why is my server room's cooling system running constantly even when the load is low?
Your cooling runs constantly because the thermostat setpoint is too low, airflow is blocked, or the system is oversized for the actual…
See the fixWhy is my server room's cooling system running constantly even when the room feels cool?
Your cooling runs nonstop because the thermostat sensor is likely in a hot spot, airflow is bypassing the rack intake, or the…
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Why is my server room's cooling system running constantly?
Your server room cooling runs constantly because the thermostat setpoint is too low, hot spots from poor airflow, or the unit is…
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