Error
code
Error message
Cause
Solution
4420
Loading of user information
failed. Check the following
contents.
• Check that your mobile
device is connected to the
internet.
User information or temperature unit information could not be
obtained because communication with the server (cloud) failed.
Check the following contents and operate again.
1. Check that the wireless LAN setting of smartphone is set to
ON.
2. Check that the smartphone is connected to the Internet.
3. Check that the wireless router is turned on.
4530
Password update failed.
Please check if the entered
current password is correct.
Password update failed because the entered password was not
correct.
Check that the entered “Current password” is correct and
operate again.
4920
Loading of time zone failed.
Check the following contents.
• Check that your mobile
device is connected to the
internet.
Time zone information could not be obtained because
communication with server (cloud) failed.
Check the following contents and operate again.
1. Check that the wireless LAN setting of smartphone is set to
ON.
2. Check that the smartphone is connected to the Internet.
3. Check that the wireless router is turned on.
1-7. Error message for wireless LAN control (Mobile app)
- (03-12) - 1. Error code
TROUBLESHOOTING
TROUBLESHOOTING