Fujitsu General Air Conditioner Wi Fi Control Error 1400

⚡ Quick Answer: The Fujitsu General air conditioner Wi-Fi control error 1400 indicates a communication failure between the indoor and outdoor units. This can lead to ... ✅ DIY Fixable

What Does Error 1400 Mean?

The Fujitsu General air conditioner Wi-Fi control error 1400 indicates a communication failure between the indoor and outdoor units. This can lead to a blinking display or unresponsive controls, typically due to issues with the Wi-Fi connection or the adapter. Ensuring both units are properly connected and that the Wi-Fi adapter is powered can help resolve this issue.

Possible Causes

  • Wi-Fi Module
  • Loose Wiring
  • Control Board Failure

How to Fix Error 1400

DIY Fix Check generic Wi‑Fi and app connectivity

  1. Ensure your smartphone/tablet has an active internet connection.
  2. Verify the air conditioner’s Wi‑Fi adapter is powered and connected to your local router.
  3. Restart your router and the Fujitsu FGLair/Nocria app.
  4. Re‑authenticate/sign into the app before retrying control functions.

Technician Only Inspect Wi‑Fi adapter and network setup

  1. Confirm the wireless LAN adapter is correctly seated and functioning.
  2. Check that the router settings (2.4 GHz network, no MAC filter blocking the adapter) match app requirements.
  3. Use any diagnostic tool provided by Fujitsu General (e.g., official diagnostic app) to read fault codes and logs if supported.

Parts needed: Wireless LAN adapter, Router/network equipment

🛑 When to Call a Pro:
  • If generic connectivity troubleshooting does not resolve control issues, contact Fujitsu General support since no specific public documentation exists for code 1400.

Technical Specifications

wattage N/A
component Wi-Fi Module
resistance N/A
part_number FJ-WM-01
voltage_rating 24V AC

Common Questions

What does 1400 error mean on Fujitsu General air conditioner wi fi control?

Error 1400 indicates a communication failure between the indoor and outdoor units, often causing a blinking display.

Can I fix Fujitsu General air conditioner wi fi control 1400 error myself?

Yes, start by checking your Wi-Fi connectivity, ensuring the adapter is powered, and restarting your router.

How much does it cost to fix 1400 error?

Repair costs can range from ¥0 to ¥10,000, depending on the troubleshooting needed.

When should I call a technician for 1400?

Contact a technician if basic connectivity troubleshooting does not resolve the issue.

Sources & References

Data last verified: 2026-07-01

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