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
⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.
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.
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
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 unitIndustrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.