ARRIS TM4: Battery Troubleshooting

To Troubleshoot the Battery

1. Make sure the battery is installed.
2. Verify the battery LED on the front.
   • If the battery LED is On indicates the battery is good and Flashing LED indicates the battery is low.
   • If the battery LED is Off the battery maybe malfunctioning.  Proceed to step 3.
3. Remove the power cord from the modem.
   • If the modem is still powered On, the battery is functioning.
   • If the modem is not powered On, proceed to step 4.
4. Remove the battery from the bottom of the modem to check for battery corrosion and also the battery connector in the TM4 Modem.
   • If there is corrosion found on the battery, the battery needs to be replaced.
   • If there is corrosion in the unit or if the battery connector is damaged, replace the damage modem.
5. If there is no corrosion or no damage to the battery connector, re-install the battery and power on the TM4 Modem.
   • If the issue is not resolved, replace the battery.
   • If the battery has been replaced and the unit is still exhibiting the same behavior, the issue could be with the modem and may need to be replaced.