Nilfisk-Advance 56110000, Service Manual

Page: 29 / 102

FORM NO. 56043124 - Condor XL
™
- 29
ELECTRICAL SYSTEM
MAIN CONTROL BOARD FAULT CODES
Side Scrub System
Code# Fault Description by System Family Troubleshooting Actions and Comments
18 NC RT Side scrub lift solenoid over current Check L9 solenoid coil wiring for problems (+ ORN and - GRN/VIO).
Check coil resistance; less than 6 ohms - replace. Also see main scrub
and right side scrub lift electrical ladder detail.
16 NC RT side scrub/sweep motor solenoid valve over
current Check L8 solenoid coil wiring for problems (+ ORN and - BLK/WHT).
Check coil resistance; less than 6 ohms - replace. Also see main scrub
on and side sweep/right scrub electrical ladder detail.
08 NC RT side scrub solution solenoid valve over current Check L11 solenoid coil wiring for problems (+ ORN and - BLU/YEL).
Check coil resistance; less than 10 ohms - replace. Also see main scrub
and right side scrub solution valves and pump electrical ladder detail.
Side Sweep System
Code# Fault Description by System Family Troubleshooting Actions and Comments
30 Side sweep lift actuator over current Three wires supply power to the M7 side broom lift actuator motor check
wiring for problems. Wire colors J3-4 BLU/RED (+) DN otherwise open,
J3-5 WHT/RED (-) UP otherwise open, J3-7 GRA/VIO common wire +
UP and - DN. Test current draw full load 20A +/-2A max. Check for frozen
or binding lift linkage, repair/replace as needed.
16 NC RT side scrub/sweep motor solenoid valve over
current Check L8 solenoid coil wiring for problems (+ ORN and - BLK/WHT).
Check coil resistance; less than 6 ohms - replace. Also see main scrub
on and side sweep/right scrub electrical ladder detail.
Side Mist System
Code# Fault Description by System Family Troubleshooting Actions and Comments
04 NC Side sweep mist pump over current Check Pump motor M5 wiring for problems (+ BLU and - YEL/BLK). Test
current draw 3.9A full load max. Note: 24V pump operating @ 12V
Recycle System
Code# Fault Description by System Family Troubleshooting Actions and Comments
00 C Extend scrub pump over current Check Pump motor M6 wiring for problems (+ GRN/BLU and - GRA/
ORN). Same fault line used for main solution pump M4 and M6.
Engine Speed System
Code# Fault Description by System Family Troubleshooting Actions and Comments
05 C 2200 RPM no input @ ECM Check for 12V (+) from controller wire J2-29 (GRA/ORN) to battery
ground (-) with the engine speed switch 51 active. Should read 12V if 0V
T.S the throttle wire, then if still OV substitute a good know controller and
dashboard panel. If 12V and no 2200 RPM throttle response test engine
controller out put to speci
fi c throttle control G/LP/D. See engine wiring
diagram for additional help.
06 NC 2400 RPM no input @ECM Check for 12V (+) from controller wire J2-30 (GRA/BLU) to battery
ground (-) with the engine speed switch 51 active. Should read 12V if 0V
T.S the throttle wire, then if still OV substitute a good know controller and
dashboard panel. If 12V and no 2400 RPM throttle response test engine
controller out put to speci
fi c throttle control G/LP/D.
10 Not used