Samsung MIM-H04UN User & Installation Manual page 22

Troubleshooting
Symptom
Are all three LED indicators
on the Wi-Fi Kit turned on?
Does only
The controls
display of the Wi-Fi Kit?
of the
SmartThings
Is the indicator blinking?
app do not
Are all LED indicators on the
operate.
Wi-Fi Kit blinking?
Is the indicator blinking?
The SmartThings app displays the error
number, 628.
only see either cooling or heating option on
the indoor unit.
The LED indicator remains in its initial state.
(The LED state changes within 1 minute.)
22
• Reset the Wi-Fi Kit and then check it again.
• Make sure you have entered the correct Wi-Fi password when
appear on the
adding a device.
• Check the router status.
• Check that the wireless router is connected to the Internet.
• This indicates a Wi-Fi Kit malfunction. Contact the Samsung
service center.
• The Wi-Fi Kit is not connected to the indoor unit(s) normally.
Contact the Samsung service center.
• This indicates a communication error between the indoor unit(s)
and Wi-Fi Kit. Check the connection of the communication cables
(F1, F2).
• To avoid mixed control, the indoor unit options are automatically
restricted to the outdoor unit's settings.
Mixed control: Different modes are available for each indoor
unit.
1. To select a mode other than the current operation mode, turn off
the indoor unit to display all operation modes to select.
2. When there is a master indoor unit, change the operation mode
of the master unit.
1. Check the connection cable between the network PBA and the
Interface module PBA.
2. Even though the connection has no problem but a problem
persists, replace the Wi-Fi Kit.
Measure