Fujitsu General Air Conditioner Wi-Fi Control Error 1200

⚡ Quick Answer: The Fujitsu General air conditioner Wi-Fi control error code 1200 indicates a communication failure with the Wi-Fi module. This issue can lead to a co... ✅ DIY Fixable

What Does Error 1200 Mean?

The Fujitsu General air conditioner Wi-Fi control error code 1200 indicates a communication failure with the Wi-Fi module. This issue can lead to a connection error on the display and may prevent the unit from responding to remote commands. To troubleshoot, check basic network settings and ensure your smartphone or tablet is connected to the internet, as well as verifying that both the wireless router and air conditioner are powered on properly.

Possible Causes

  • Wi-Fi module failure
  • Router connectivity issues
  • Firmware issues

How to Fix Error 1200

DIY Fix Basic Network and App Troubleshooting for FGLair Wi‑Fi Control

  1. Ensure your smartphone or tablet is connected to the internet.
  2. Verify your wireless router is powered on and connected properly.
  3. Confirm the air conditioner is powered and not showing other fault states.
  4. Restart the router and retry connecting the FGLair app.
  5. Check that you are using the correct app for your unit (FGLair or AIRSTAGE Mobile as appropriate).

Technician Only Advanced Wi‑Fi Control Diagnostic Steps

  1. Check the compatibility of the WLAN adapter and wireless router with IEEE802.11b/g/n 2.4 GHz.
  2. Verify that the WLAN adapter is correctly registered with the FGLair app and air conditioner.
  3. Review router settings (e.g., disable MAC filtering, ensure correct SSID/PIN entry).
  4. Examine wireless adapter LED indicators per the FGLair manual for status signals.
  5. Collect Wi‑Fi log files from the FGLair app and analyze for errors or send to Fujitsu General support for diagnosis.

Parts needed: wireless LAN adapter (internal or external), wireless router

🛑 When to Call a Pro:
  • If repeated attempts at reconnection do not resolve the issue and the air conditioner cannot be controlled via Wi‑Fi.
  • If the WLAN adapter LED indicators show hardware fault signals after multiple resets.

Next step

Choose the next step for 1200

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Appliance Wi-Fi Module

Provides the model-specific wireless connection used by compatible appliance apps and cloud services.

Typical part-only price
$25 - $180
DIY difficulty
Medium
Estimated time
20-60 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Air Conditioner Wi-Fi Control parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Technical Specifications

wattage 5W
component Wi-Fi Module
resistance N/A
part_number FJ-WIFI-MOD-001
voltage_rating 24V AC

Common Questions

What does 1200 error mean on fujitsu general air conditioner wi fi control?

Error 1200 signifies a communication failure with the Wi-Fi module, affecting remote control.

Can I fix fujitsu general air conditioner wi fi control 1200 error myself?

Yes, ensure your devices are connected to the internet and verify power to the air conditioner and router.

How much does it cost to fix 1200 error?

Repair costs for error 1200 vary by model and region.

When should I call a technician for 1200?

Call a technician if reconnection attempts fail or if hardware fault signals are shown.

Sources & References

Data last verified: 2026-07-26

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