Nilfisk-Advance 56507009, Troubleshooting Manual

Page: 21 / 82

FORM NO. 56043129 - SR 1900 - 21
TABLE A
Fault
Number
Service
LED
Blink
Code
Fault Description Output
Pin #
Troubleshooting Action
1 1,1
Solenoid S1 hopper close/open overload
Coil spec is 8 Ohms
J1-1
1. Check S1 coil wiring for a short circuit Vio + & Blu/Wht
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
2 1,2
Solenoid S2 main broom overload
Coil spec is 8 Ohms
J1-2
1. Check S2 coil wiring for a short circuit Vio + & Grn/Gra
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
3 1,3
Solenoid S3 side broom overload Coil
spec is 8 Ohms
J1-3
1. Check S3 coil wiring for a short circuit Vio + & Brn/Blk
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
4 1,4
Solenoid S4 dust control overload
Coil spec is 8 Ohms
J1-4
1. Check S4 coil wiring for a short circuit Vio + & Brn/Yel
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
5 2,1
Solenoid S5 hopper up/down overload
Coil spec is 8 Ohms
J1-5
1. Check S5 coil wiring for a short circuit Vio + & Red/Gra
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
6 2,2
Solenoid S6 hopper up/bypass overload
Coil spec is 8 Ohms
J1-6
1. Check S6 coil wiring for a short circuit Vio + & Blu/Gra
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
7 2,3
Solenoid S7 hopper door/open overload
Coil spec is 8 Ohms
J1-7
1. Check S7 coil wiring for a short circuit Vio + & Blk/Wht
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
8 2,4
Solenoid S8 dust control bypass
overload
Coil spec is 6 Ohms
J1-8
1. Check S8 coil wiring for a short circuit Vio + & Brn
-. 2. Check coil resistance if below 4 Ohms replace.3.
Substitute a new A2 control box.
9 3,1
Solenoid S9 hopper lower overload
Coil spec is 8 Ohms
J1-9
1. Check S9 coil wiring for a short circuit Vio + & Yel/Grn
-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.
10 3,2
Shaker relay K3 overload
Coil spec is 85 Ohms
J1-14
1. Check K3 coil wiring for a short circuit Vio + & Yel/Red
-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.
11 3,3 Back-up alarm overload J1-15
1. Check the alarm wiring for a short circuit Vio + & Grn/
Brn -. 2. Disconnect alarm wiring if overload goes away
replace the alarm if not substitute a new A2 control box.
12 3,4
Light relay K2 overload
Coil spec is 85 Ohms
J1-16
1. Check K2 coil wiring for a short circuit Vio + & Yel/Wht
-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.
13 4,1
Neutral start relay K4 overload
Coil spec is 85 Ohms
J1-18
1. Check K4 coil wiring for a short circuit Vio + & Gry/Wht
-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.
14 4,2
Horn relay K1 overload
Coil spec is 85 Ohms
J1-19
1. Check K1 coil wiring for a short circuit Vio + & Vio/Brn
-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.
15 4,3
Engine speed output overload
Note the Gra/Blu wire is 0 V’s when
engine is @ idle.
J1-17
1. Throttle input to engine A3 ECM (GM), Woodward
governor (diesel) or A1 throttle control module (Kubota)
is +12V for high speed. Check Gra/Blu wire for a short to
ground. 2. Substitute a new A2 control box.
16 4,4
Spare overload
Not used at this time
J1-12 NA