Customer Care
12833 DC Bus Low – Software Detected
Continued
5.
Turn key switch to the on position. The
solenoid should click. Place pos. meter
probe A on bottom solenoid post. Place
neg. meter probe B on -48V battery
terminal. Voltage should be the same as
the battery set and the top solenoid post. If
voltage is
less than
1V between large
posts, replace the solenoid. If voltage
drop
is
1-2v controller has disconnected solenoid.
Voltage is
good go to step 6.
6.
Place pos. meter probe A on
controller terminal B+. Place neg.
meter probe B on controller B-.
Voltage should be the same as the
battery set. If not, replace -48V battery
wire to B-. If voltage is still not the
same verify steps 2 – 5.
Resistor control wire
7.
Disconnect resistor control module
black wire from B- on the controller. If
error status changes, replace the
resistor module. If error continues, see
step 8.
8.
Place pos. meter probe A on one
resistor tab and neg. meter probe B
on the remaining tab. Verify 0.2 – 0.5
ohms. If resistance is out of spec.
replace resistor. If resistance is good,
go to step 9.
A
A
A
B
B
B
Page 1
8