2 2 S o l l at e k P o w e r B a c k M a N U a l
Problem
Possible Causes
Remedy
no LCD display
1. Battery weak
1. re-charge battery
<35V for 48V
2. Battery defective
2. Battery replacement
(can't be charged)
3. Power switch is not
3. Press and hold power switch
pressed
4. Battery polarity reversed,
4. Send back for repair
can’t start up the unit
Mains normal but
1. ac Input missing
1. check ac input connection
works in inverter mode
2. reset the input protector
2. Input protector is effective
Alarm buzzer beeps
1. overload
1. Verify that the load matches the
continuously
capability specified in the specs
2. output short circuit
2. check wiring or remove abnor-
mal load
3. over temp
3. Move away barrier in front of
airflow inlet
4. over charger
4. restart the unit
5. over voltage
5. lower the Dc input voltage
under the high Dc input shut-
down recovery (58.0±1.2Vdc)
6. Fan fault
6. check vents are clear, if not
replace the fan
7. Back-eMF
7. check the ac Input and output
wire connection
8. Dc voltage under the
8. Make sure mains is normal to
low Dc shut-down
recharge the battery if not switch
the power off until mains is
normal
Back up time is shortened
1. overload
1. remove some non-critical load
2. Battery voltage is too low
2. charge battery for 8 hours or
more
3. Battery bank is too small
3. Increase battery bank capacity
tRoUBLesHootInG
