serin labssupport
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- The unit ignores commands after flashing Usually swapped TX/RX wires, or a board that only runs on USB power. Troubleshooting
- The board drops off Wi-Fi overnight Metal cabinets, 5 GHz networks, and DFS channels are the usual causes. Troubleshooting
- Where do I find my model number? On the nameplate sticker inside the indoor unit. Guide
- Why does the temperature read a few degrees high? The internal sensor reads return air. A remote sensor corrects it. FAQ
- Apple Home rejects the pairing code Reset pairing from the board's web UI, then add it again. Apple Home
- Do multi-zone systems need one board per unit? Yes. Every indoor unit has its own CN105 port. FAQ
- Which cable length fits a ducted unit? The 50 cm cable reaches most ducted control boards. Guide
- Flashing fails in the browser Use a data-capable USB cable with Chrome or Edge. Troubleshooting