TROUBLE SHOOTING CHART CONTINUED
Problem Cause
Solution
Front of machine does
not move down to the
floor when turned on.
Spring guides sticking in slides.
Check spring guides for proper operation.
Replace if bent. Lubricate if necessary. Loosen
bolts in spring guide mounting bracket, it will
self align, retighten bolts.
Flashing number 1
appears in battery
meter.
Brush motor circuit closed when machine is
turned on.
Turn off brush switch. Check tilt switch for
proper operation.
Flashing letter A
appears in battery
meter.
Twist grip not in neutral when master switch is
turned on. Potentiometer not set properly in
neutral position.
Let go of twist grip. Have an authorized NSS
Service Station reset the potentiometer to
neutral or replace.
Fault code F12 appears
in battery meter.
Internal programmable parameter data is
corrupt.
Turn machine off and then on. If problem
continues call for service.
Fault code F23 appears
in battery meter.
Internal temperature of controller has exceeded
the set parameters.
Turn machine off and let control system cool off.
If problem continues call for service.
Fault code F26 appears
in battery meter.
Precharge failure when controller is turned on or
the control system has been miswired causing
an internal controller failure.
Turn machine off and then on. If problem
continues call for service.
Fault code F29 appears
in battery meter.
Internal control system failure.
Turn machine off and then on. If problem
continues call for service.
Fault code F32 appears
in battery meter.
Internal control system failure.
Turn machine off and then on. If problem
continues call for service.
Fault code F37 appears
in battery meter.
Internal control system failure.
Turn machine off and then on. If problem
continues call for service.
Fault code F42 appears
in battery meter.
The brush motor is exceeding the current limit
set in the controller.
Check the gas springs for wear. Check the
brush pressure set collars for proper
adjustment. Check pad driver and Flexiwall
shield for proper installation and problems. Turn
machine off and then on. If problem continues
call for service.
Fault code
F44/F4C/F45/F59/F60
appears in battery
meter.
Caused by wiring short circuit in drive wiring or
shorted drive motor.
Check wiring and drive motor for short circuit.
Correct problem if found. If problem continues
call authorized NSS Service Station for service.
Fault code F4D/F46/F61
appears in battery
meter.
Caused by wiring short circuit in brush wiring or
shorted brush motor.
Check wiring and brush motor for short circuit.
Correct problem if found. If problem continues
call for service.
Fault code F58 appears
in battery meter.
The deceleration of the brush motor or drive
motor exceeded set parameters. Example:
Tried to slow down or stop on too steep a hill.
Turn machine off and then on. If problem
continues call authorized NSS Service Station
for service.
Fault code F62 appears
in battery meter.
Internal control system failure.
Turn machine off and then on. If problem
continues call for service.
Fault code F63 appears
in battery meter.
Caused by wiring short circuit in contactor
wiring or contactor coil.
Check wiring and contactor for short circuit.
Correct problem if found. If problem continues
call for service.
Repairs performed by an unauthorized company will void the machine warranty.
If you require assistance finding an authorized service center, contact NSS Enterprises.
NSS
®
Enterprises, Inc.
3115 Frenchmens Road, Toledo, Ohio 43607
PHONE (419) 531-2121 FAX (419) 531-3761
NSS ® Enterprises, Inc. European Distribution Centre
Unit II, Pinfold Trading Estate * 55 Nottingham Road
STAPLEFORD, NOTTINGHAM NG9 8AD ENGLAND U.K.
PHONE: (44) 0115 939 1568 * FAX: (44) 0115 949 0615
https://harrissupplyind.com - To Order Parts Call 608-268-8080
