Nilfisk-Advance Advenger 3400ST User Manual

RECOVERY SYSTEM 56Service Manual – Advenger, 2800ST, 3800ST, BR 755, BR 855
RECOVERY SYSTEM ERROR CODES AND MEASUREMENTS
Advenger
/ BR 755,
855 Display
Error Code
ST
Service LED
Blink Code
Fault Description Troubleshooting Action
7 1, 3 Vacuum motor circuit overload
1. Check for debris in vac motor
2. Check for worn carbon brushes
3. Check for defective/corroded motor bearings
4. Check for short circuit in vac motor or wiring.
5. Check the negative supply cable at the vac motor for a wiring
problem, improper modications, or poor connections at the BRN/
RED sense wire.
Repair or replace.
9 2, 1 Vacuum K1 contactor coil overload
Check for short circuit in wiring or K1 contactor coil.
Repair or replace
33
3, 1
Visible
in Fault
Recall Mode
Vacuum motor circuit open
1. Check for motor wiring open or defective motor,
2. Check the negative supply cable at the vac motor for a wiring
problem or improper modications (this is a special cable and must
be replaced with original OEM due to sense wire).
3. Check K1 contacts - if open circuit while vac is turned on (0V at
J3-12), replace K1.
36
3, 3
Visible
in Fault
Recall Mode
Vacuum K1 contactor coil open
1. Check coil resistance (see chart below).
2. Check for tight connections at contactor and GRA/BLK wire to
control board. Repair or replace.
61 4, 1
Vacuum K1 contactor contacts stuck
closed
With no power to circuit, if contacts measure 0 ohms they’re stuck.
Replace K1.
64 4, 4 Vacuum contactor coil control fault
1. If J3-12 is 24V referenced to B+ when Vacuum switch is Off,
replace control board.
2. If J3-12 is 0V referenced to B+ when Vacuum switch is Off,
disable fault via Hidden Menu. Refer to “Control Board J1, J2, and
J3 Pin Outs and Test Points” section.
Vacuum
Motor
Single/Dual
Nominal Current (A)
+/- 3A
Overload Current (A) Wire Colors
M5 Single 20 30 White & Black
M5 + M6 Dual 40 60 White & Black
Vacuum
Contactor Coil
Nominal
Resistance
Nominal Current Overload Current Wire Colors
K1 100 ohms 240 mA +/- 50 mA 750 mA
Brown
&
Gray/Black

Nilfisk-Advance Advenger 3400ST Specifications

General

Brand	Nilfisk-Advance
Model	Advenger 3400ST
Category	Floor Machine
Language	English