Troubleshooting - Danfoss SonoRead 868 Mode D'emploi

User Manual SonoRead 868 Wireless Radio Receiver for meter reading
8

Troubleshooting

Should the SonoRead 868 not work as described in this document, please check the list of possible error
causes below for a solution:
After pressing the On button there is no LED lit up.
•
Charge the device for at least 4 hours.
•
If the error persists, turn the device in for repair.
After having dropped the SonoRead 868 device to the ground it is no longer possible to switch it on (there
is no LED lit up after pressing the On button).
•
Connect the charger for approximately 15 seconds. Try to switch on the device again.
•
If the error persists turn the device in for repair.
After connecting the battery charger the CHRG LED is not lit up.
•
Check if the plug of the battery charger is correctly placed onto the SonoRead 868 connector.
•
Check if the battery charger wall plug is connected to mains power supply.
•
If the error persists turn the device in for repair.
It is not possible to establish a Bluetooth connection.
•
Check if the SonoRead 868 is still switched on.
•
Check if the SonoRead 868 was found during the Bluetooth device search and repeat it, if
necessary.
•
Switch the SonoRead 868 off (by holding the On button down for more than 5 seconds), wait 60 sec-
onds and switch it on again. Retry the Bluetooth search then. Note, that it is not possible to switch off
the device manually if a Bluetooth connection is established (Bluetooth LED lights up in amber).
•
Switch off and restart your smartphone or tablet.
•
Try another smartphone or tablet for establishing the Bluetooth connection.
•
If the error persists turn the device in for repair.
The battery operating time is much shorter than specified.
•
If you are using the serial interface intensively with an external device consuming a lot of power, the
battery operating time is shorter than specified. This depends on the power consumption of the exter-
nal device and on how long the external device is switched on.
•
Lithium ion batteries are degrading with time and charging cycles. Usually, after one year or 300 charg-
ing cycles the capacity should be still at 80% of the initial capacity. However, if the battery operating
time becomes too short after several years, it is possible to replace the lithium ion battery. Do not
attempt to replace the battery by yourself but turn the device in.
The ER LED and the LOW LED are flashing in red rapidly.
•
The internal self-test has failed. Switch the SonoRead 868 off (by holding the On button down for more
than 5 seconds). Charge the device for at least 4 hours. Switch the device on and try again.
•
If the error persists turn the device in for repair.
12 | © Danfoss | Energy Meters | 2017.09 VUIGP102