Nilfisk-Advance CR 1100 Quick Start Troubleshooting Manual page 23

Display
Code Error Description
Solution solenoid coil circuit short
51
Solution solenoid coil current too high
52
Solution solenoid coil circuit open
53
Hydraulic pump contactor coil circuit short
54
Hydraulic pump contactor coil current too high
55
56 Hydraulic pump contactor coil circuit open
Back-up alarm circuit short
57
Back-up alarm current too high
58
Back-up alarm circuit open
59
Side broom actuator circuit short
60
Side broom actuator circuit current too high
61
Side broom actuator circuit open
62
Scrub deck actuator circuit short
63
Scrub deck actuator circuit current too high
64
Scrub deck actuator circuit open
65
Squeegee actuator circuit short
66
Squeegee actuator circuit current too high
67
Squeegee actuator circuit open
68
69
Troubleshooting Actions
Check for wiring problems at the L1 and L2 coils.
Check L1 and L2 coils resistance if below 70 ohms,
replace.
Same as Error 51 Replace coil. (Shorted Coil)
Check for open in coil(s) & wiring.
Check for 36V at the L1 and L2 solution valve coil wire
colors VIO(+), YEL/GRN (-).
Check for wiring problems at the K11 coil.
Check K11 coil resistance if below 149 ohms Replace.
Same as Error 54 Replace coil. (Shorted Coil)
Check for open in coil & wiring.
Check for 36V at the K11 coil wire colors
VIO (+), BLU/WHT (-).
Check alarm and wiring
Check alarm and wiring
Check alarm and wiring
Check for short in wires or motor.
Check for binding of linkage.
See service manual section flowcharts.
Check for short in wires or motor.
Check for binding of linkage.
See service manual section flowcharts.
Check for short in wires or motor.
Check for binding of linkage.
See service manual section flowcharts.
FORM NO. 56043126 - CR 1100, CR 1200 - 21