
20
TROUBLESHOOTING
Causes and solutions
ERROR REMEDY/CAUSE
Unit will not respond to a text message and will
not execute commands despite all indication lights
lighting as they should. (2 green lights)
• Check that the SIM card is active and works using a standard mobile
phone.
Text command executed by ControlBox24/7 but I
receive no text message confirmation
• Check that the SIM card can send a text message from a standard
mobile phone.
• Check that the GSM signal strength is sufficient (Above 4)
• Check that STEL command is set correctly.
• Check country code setting. (NACO)
GSM indicator light on constantly. • The indicator will normally be on for up to 30 seconds during start-up of
ControlBox24/7.
• No/poor GSM signal.
GSM indicator flashing slowly. • Error on SIM card or GSM unit. Test SIM card in standard mobile phone.
Battery indicator light gone out • The backup battery is either switched off or disconnected, check that the
battery switch is in the ON position.
Battery indicator light flashing slowly • The unit has lost external power and the rechargeable backup battery
is running out. Check that the external power supply is working and is
connected.
Power indicator light is off • The unit has lost external power. Check that the adapter is working and is
connected.
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