wallas 4430A Installation And Operation Instruction Manual page 39

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If the validation was not successful, a red
Check whether you have entered the correct SIM card number, telephone number,
and have selected the correct operator, also ensure that the 4430 unit has been
connected and a green LED is flashing with an interval of 7 seconds.
After verification click the [Update heater setting] button again to configure the
equipment.
If the LTE/4G signal is weak or the traffic of the operator is overcrowded
registration can take a while. Wait calmly for registration, it can take even hours
before the unit is validated and you will receive a successful registration message
to your e-mail. Registration will continue even if you shut the browser on your
computer.
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Registered users can change the operator and SIM card data in the [Heater Set-
tings] tab. After having entered the new information click the [Update heater setting]
button again to configure the equipment.
Wait calmly for registration, it can take even hours before the unit is
validated and you will receive a successful registration message to
your e-mail.
4430A
Operation
O
symbol is displayed on the screen.
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