Sevcon Millipak 633T45312 Controller
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The Sevcon Millipak 633T45312 is a 24/48 V, 500 A motor controller used in high‑current applications such as golf carts and industrial drives. Common failures on this model include over‑temperature shutdowns that trigger a four‑flash error code, power supply board faults (e.g., blown capacitors or damaged MOSFETs), and internal logic IC failures that cause the unit to power on briefly then shut down. First‑check diagnostics: verify the 48 V input rail is within spec and stable; inspect the controller’s power PCB for burnt components or cracked solder joints; and review any displayed error codes via a serial or CAN interface if available.[oss-gpt-20b] |
Need your Sevcon repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
- ⚙️ Fast Diagnostics – Same-day evaluation available
- 🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
- 🧰 Expert Technicians – Decades of board-level experience
- ✅ 1-Year Warranty – Every repair fully guaranteed
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
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- ✅ 1-Year warranty on completed repairs
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
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🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.