DuraComm PS75B5 Power Supply Repair Service

Professional diagnostic and board-level repair service for this DuraComm PS75B5 Power Supply.

The DuraComm PS75B5 is a rugged 13.8 VDC, 75‑amp switching power supply commonly used in telecom and industrial control systems. Known failure modes for this class include capacitor degradation (especially electrolytic on the output filter), overheating of the internal MOSFETs or transformer windings, and failure of the built‑in short‑circuit/over‑current protection fuses. First‑check diagnostics: verify input voltage and line frequency with a multimeter; inspect the output for correct DC voltage and ripple using an oscilloscope; visually examine the board for bulging capacitors, burn marks, or loose connections, and confirm that all fuses are intact. Post Comment

Need your DuraComm PS75B5 Power Supply repaired?

Ship your unit to our North Carolina repair shop for component-level diagnostics and a repair estimate. We service industrial control electronics and power systems nationwide.

• ⚙️ Board-level diagnostics – Troubleshooting beyond simple module replacement
• 🔁 Clear approval process – No repair begins without your approval
• 🧰 Expert Technicians – Decades of board-level experience
• ✅ 1-Year Warranty – Included with completed repairs

Start a Repair Request   Call 1-336-969-0110

Nationwide service • Industrial-grade testing • 1-year warranty on completed repairs

Owner-Operated • Practical Pricing • 1-Year Warranty • Nationwide Service

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