I replaced my APC NS600 with a BN650M1. The new unit displays an amber lite and alarm intermittently from a few seconds to 30 or more, on and off, as long as the unit is turned on. My old unit never had this issue. Tried another new unit, same problem null

Question

Maldonacho · Accepted Answer

Try following the instructions. You have to connect the hot wire to the battery.

Peanut · Answer

You were instructed to charge the battery in the new unit for 24 hours before use. The battery having less than sufficient charge will cause the alarm.

APCProductSupport · Answer

Thank you for taking time to review our UPS. I am sorry to hear about the issues you are facing with the unit. I would try removing all the equipment from the unit to make sure the UPS isn't becoming overloaded. It shouldn't be since the old unit was a similar size but it is always good to rule it out. You can also try unplugging the power from the wall, disconnect the internal battery then hold the power button for around 10 seconds to reset the unit. You would reverse the directions to power it back on. If this doesn't resolve the issue please reach out to an APCbySchneider support team at your convenience. We offer email and chat services through our support site and you may also contact us directly at 800-800-4272 option 4.

Answered by APCProductSupport 6 years ago

“I replaced my APC NS600 with a BN650M1. The new unit displays an amber lite and alarm intermittently from a few seconds to 30 or more, on and off, as long as the unit is turned on. My old unit never had this issue. Tried another new unit, same problem”

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