Curtis 1238-5401 Motor Controller

Curtis 1238‑5401 is a high‑current (up to 450 A) AC induction motor controller rated for 36–48 V input, commonly used on counterbalance trucks and warehouse vehicles. Common failure points include over‑current protection trips, phase loss or voltage imbalance triggering fault code 1238, EEPROM corruption (code 1243), and motor driver IC overheating. First‑check diagnostics: verify the supply rail voltages and continuity of the 36/48 V bus; inspect the I/O terminals for shorts or open circuits; review the controller’s fault log for codes 1238, 1239E, or 1243 and correlate with recent load conditions.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

📞 Call Now: 1 (336) 969-0110

Free Estimates • Industrial-grade testing • Nationwide Service

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[oss-gpt-20b]

We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.

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Contact Us

🚑Shop Location🛠️

Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.

📞Phone

1-336-969-0110

📦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.