ELECTRICAL SYSTEM
FORM NO. 56043088 / Advenger
™
/ BR 600S, 650S, 700S, 800S - 55
Error Code Fault Description Troubleshooting Action
E07 Vacuum motor overload 1. Check for debris in vac motor. 2. Worn carbon brushes.
Normal current load 17-19 Amps 3. Defective motor bearings. 4. Check for short circuit* in
(1 motor). Normal current load vac motor or wiring. Repair or replace.
34-38 Amps (2 motors)
E08 Solution solenoid overload 1. Check for a wiring problem. 2. Check coil resistance (spec. is 125 Ohms
+ or – 15%). Replace solution solenoid if lower than 105 Ohms.
E17
Scrub deck lift actuator circuit open (**) 1. Check for disconnected actuator wiring, open in wiring or defective actuator motor.
Repair or replace. 2. Check controller output voltage should be 36V if 0V controller
failure (replace).
E18 Scrub deck lift actuator short 1. Check for binding or frozen brush lift linkage and excessive weight on
brush deck. 2. Check for short circuit* in brush lift motor and wiring. Repair
or replace.
E19 Squeegee lift actuator circuit open (**) 1. Check for disconnected actuator wiring, open in wiring or defective actuator motor,
Repair or replace. 2. Check controller output voltage should be 36V if 0V controller
failure (replace).
E20 Squeegee lift actuator short Check for binding or frozen squeegee lift linkage and excessive weight on
squeegee. 2. Check for short circuit* in wiring or actuator motor. Repair or
replace.
E21 Scrub motor circuit open (**) 1. Check for open in brush motor wiring or defective motor. 2.
Brush solenoid coil resistance Check the negative supply cable at the brush motor for a wiring
120 Ohms +/- 10% problem or improper modifi cations (this is a special cable and must be replaced
with the original OEM). 3. Replace defective brush motor contactor. 4. Check
if brushes are installed.
E22 Scrub motor short Same as E06.
E23 Vacuum motor circuit open (**) 1. Check for disconnected vacuum motor wiring, open in
Vac solenoid coil resistance wiring, defective vacuum motor and vac contactor failure.
120 Ohms +/- 10% Repair or replace. 2. Check controller output voltage should be 36V if 0V
controller failure (replace).
E24 Vacuum motor short Same as E07
E25 Solution solenoid circuit open (**) 1. Check for disconnected solenoid wiring plug, open in wiring or defective solenoid.
Repair or replace. 2. Check controller output voltage should be 36V if 0V controller
failure (replace).
E26 Coil / solution solenoid short 1. Check for a short circuit* in wiring or solenoid coil. Repair or replace.
E27 No accessory / wiring 1. Loss of battery (pos.) output to all system contactors (brush, solution
solenoid and vacuum) and system accessories (headlight, warning beacon,
solution pump). 2. Check controller accessory terminal output (J2-8 Wht/Brn
wire) voltage should be 36V if 0V controller failure (replace).
*Short Circuit defi nition:
• A short circuit is a parallel path of very low resistance, often caused accidentally.
• With low resistance there is an excessive amount of current.
• The excessive current will either melt the wires or open a fusible link.
MAIN CONTROLLER ERROR CODES (CONTINUED)
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