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- FORM NO. 56043115 - 34 RST
Control Panel
Test Mode Output Controls
The control panel switches are used to control various output functions of the Main controller while in Test Mode.
Below is a list of each switch and the function it controls. Following the list is a detailed description of each function.
Scrub off Switch (H)
: Controls the brush motors.
Scrub on Switch (I)
: Controls the scrub deck lift actuator.
Vacuum Switch (C)
: Controls the vacuum motor.
Wand Switch (E)
: Jogs the scrub deck lift actuator.
Solution Switch (B)
: Turns on the solution solenoid valve.
Detergent System Switch (F)
: Turns on the chemical pump (If available).
Description of Output Controls
Scrub System Off Switch (H)
:
This switch is used to toggle the state of the brush motor contactor. Pressing and releasing this switch will
alternately turn the brush motor contactor on and off. The indicator provides the following status information:
Off – Brush motor output is off and there is no brush motor current sensed.
Steady Green – Brush motor output is on and there is normal brush motor current sensed.
Brief On Green Flash – Brush motor output is off and brush motor current is being sensed (abnormal condition).
• Check for voltage at the Wht wire on K1 contactor to battery ground.
• If any voltage is present, replace K1 contactor.
• NO voltage, replace the Main control board.
Brief Off Green Flash – Brush motor output is on and brush motor current is not being sensed (abnormal condition).
• Check brush motor wiring plugs.
• Check one of the Blk wires of the main harness connector at the brush motor to battery Positive. If no voltage
repair or replace wire.
• Check one of the Wht wires of the main harness connector at the brush motor to battery Neg. If no voltage repair
or replace wire.
• Check for voltage at the Red wire on K1 contactor to battery ground. If no voltage is present repair the Red wire.
• Check for voltage at the Wht wire on K1 contactor to battery ground. If no voltage is present replace the K1
contactor.
Flashing Red – Brush motor overload has occurred.
• Check to see that the proper brush programming type is selected (disc or cyl).
• Check for binding in rotation of brushes or improper scrub brush type installed. (Amp. Test) See Pressure Chart
in this Manual.
• Check the negative supply cable at the brush motor for a wiring problem or improper modifications.
• Check for open in the small WHT/GRA current sense wire.
• Check for short circuit* in brush motor or wiring.
• Inspect gearbox for failure (disc). Repair or replace.
• Inspect scrub brush drive bearings for excessive wear (cyl.).
