YAMABISHI miniUPS ALS -1.5K, Instruction Manual

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Problem Causes Solutions
UPS no reaction while AC
is connected Fuse at rear panel blown Replace fuse
No AC input Check AC power
UPS fault Call for service
Battery damaged Call service to replace batteries
UPS no reaction while AC
is connected, yet DC starts
after pushing power on/off
switch
Fuse at rear panel blown
Replace fuse
No AC input Check AC power
UPS fault Call for service
UPS goes into DC mode
connected to AC AC voltage or frequency
abnormal Check AC power
UPS AC detecting circuit
fails Call for service
UPS still in bypass mode
after de-green mode
function UPS still in POWER OFF
status Press power on/off key,
Buzzer sound once and the UPS
Become normal
Keys on front panel don’t
work UPS is proceeding
controlling process Wait for a while to operate the UPS
Key damaged Call for service
Press FUNCTION key in
AC mode, but the UPS goes
back to AC mode within
less than 10 seconds Internal battery
deteriorated Call service to replace batteries
Fault LED lit UPS abnormal Call for service
Output load abnormal or
short circuited Check load
Battery cannot provide
normal back up power
when there is no AC input Internal battery
deteriorated Call service to replace batteries
Batteries not fully charged Charge the battery
Battery charger damaged Replace charger and charge the
battery if necessary
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