Jandy C22.2 Serial Adapter

The Jandy C22.2 Serial Adapter is an industrial interface that converts RS‑232/RS‑485 serial signals to the proprietary format used by Jandy AquaLink® RS pool and spa control systems. Common failure points include a damaged UART chip, broken trace connections on the PCB, or degraded solder joints at the serial port connectors; these can cause intermittent communication or complete loss of data exchange with the main controller. First‑check diagnostics: verify 5 V/12 V power supply rails to the adapter board, inspect the serial connector for bent pins or corrosion, and use a loopback test on the RS‑232 port to confirm TX/RX functionality; if errors persist, review any error codes transmitted by the main controller.[oss-gpt-20b]

Need your Jandy 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

⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.

Industrial AI Hardware Recovery — Free Diagnostic • Pay Return Shipping Only

[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.