FranklinWH System User Manual
25
No. Problems Solutions
5
A prompt of “Low battery,
black start attempts” is
displayed on the mobile
app.
Check whether the grid power is down and whether the
solar system is out of operation or there is insufficient
sunlight.
i. Low battery and black start indicate that the
battery capacity is very low, the backup power and
auxiliary power will be disconnected, and the
system will enter sleep mode. Once the system
enters sleep mode, it will automatically recover and
charge the batteries the next day if there is
sufficient sunlight.
ii. By default, the system black start times are
approximate 10:00, 12:00 and 14:00. There may be
some deviations in time in sleep mode.
iii. During black start, please turn off all household
loads to ensure that FranklinWH system can be
started normally.
iv. Manual black start is also an alternative to
automatic.
Manual Start: Turn off the aPower switch on the
side of aPower (extended, flush with case), and
turn it back on (depressed) 20 seconds later. The
system will start up.
v. Black start will consume the reserve capacity, it is
recommended to attempt a manual start only when
there is enough solar production. Otherwise, the
system may lock.
6
A prompt message of
“Black start failed” is
displayed on the mobile
app.
i. Check if there are household electrical devices
running when the system attempts to start. Ensure
that all the household electrical devices are shut
down, to help the system successfully start.
ii. Check whether the solar system is operating
normally and whether there is sufficient sunlight.
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