Weltronic Decade 5 811-3803 control unit

Weltronic Decade 5 811‑3803 is a compact industrial control unit used for timing and sequencing in automation lines. Common failure modes on this model include power supply dropout (often due to the internal DC/DC converter), burned input/output relays, and firmware corruption that can trigger “lockup” or reset cycles. Begin troubleshooting by verifying the 24 V/48 V supply rail with a multimeter, inspecting all I/O contacts for burn marks or corrosion, and reviewing any diagnostic LEDs or error codes displayed on the panel before proceeding to component-level testing.[oss-gpt-20b]

Need your Weltronic repaired or tested?

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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Other Repaired Units by Weltronic

Weltronic 811-3800 Decade-5 control unit
Weltronic 811-3800 Decade-5 control unit
Weltronic 811-3800 Decade-5 control unit
Weltronic Decade 5 811-3803 control unit
Weltronic Decade 5 811-3800 control unit

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.