Troubleshooting Procedures; Ac Line Indicator Led Not Lighting - Toshiba 1400 Series Operation Manual

6.0

Troubleshooting Procedures

6.1

AC Line Indicator LED Not Lighting

6.1
Is the input
power plug securely
connected?
YES
Is the AC input
circuit breaker or fuse
Is the input voltage
above or below specified
Contact your Toshiba
service representative.
Caution:
All UPS units contain hazardous voltages that have the potential to burn
and shock. These voltages exist even if main power is disconnected.
Only qualified personnel should perform troubleshooting or repair work
on UPS units.
open ?
NO
limits?
NO
NO
NO
Tighten the input plug.
Reset input circuit breaker
YES
Replace the AC input fuse.
Connect to input voltage
YES
source within correct tolerance.
YES
Continue normal operations.
6 - 1
TOSHIBA
or
Is the
AC Line
LED lit?