Signs of Power Supply Board Failure
22 Jan 2026
Power supply boards often show warning signs before they fail outright.

What to watch for
No output voltage, output voltage out of specification, the unit tripping or shutting down under load, unusual heat, or capacitors that look bulged or leaking.
Why capacitors matter
Capacitor failure is one of the most common — and most repairable — power supply faults. A bulging or leaking capacitor is a clear visual signal worth acting on early.
What happens next
Assessment measures input and output voltages under load and inspects components to confirm the fault before recommending repair or replacement.
Related Service
Power Supply Repair