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FORM NO. 56043103 - Warrior ™ ST, Warrior ™ AXP / BA 755 series - 61ELECTRICAL SYSTEMMAIN CONTROLLER ERROR CODESDisplay Code Fault Description Troubleshooting Action03(E-0-3)Drive system fault. 1. Check for a tripped drive motor circuit breaker (30 amp). Investigate reasonfor possible mechanical over load. Examples: Debris wrapped around the drivewheels, defective differential and prolonged ramp climbing. 2. Observe the greenflashing wand indicator light (location operator panel) then see Curtis drive motorcontroller section to further troubleshoot the drive system (Table 1).04(E-0-4)Scrub deck lift actuator overload.Normal current load 1-2.5 Amps, max.Current load 6 Amps, Max. Current noload 1.4 Amps.1. Check for binding or frozen brush lift linkage and excessive weight on brush deck.2. Check for short circuits in actuator in the motor and wiring. Repair or replace.* Totest, disconnect the motor plug and attach the actuator test cord (56407502) andperform an Amp draw test. Compare readings to the fault description table on theleft.05(E-0-5)Solution pump overload.Normal current load .8-1.8 Amps max.Current load 3.2 Amp over will cause05 pump motor overload.1. Check for short circuits in wiring and pump motor. 2. Disconnect pump motor andrun the machine to see if the wiring is shorted. 3. Check the pump motor to see if itis bad.06(E-0-6)Scrub motor overloadNote: See Table #2 Scrub Pressurefor detail load current values for thedifferent PA#s.1. Check for binding in rotation of brushes or improper brush Scrub Pressure liftactuator operation. 2. Check the negative supply cable at the brush motor for awiring problem or improper modifications. 3. Check for an open in the small WHT/GRA current sense wire. 4. Check to see that the proper brush programming type isselected*** (disc or cyl). 5. Check for short circuit* in brush motor or wiring. 6. Inspectgearbox for failure (disc). Repair or replace. 7. Inspect scrub brush drive bearings &drive belts for excessive wear (cyl.).07(E-0-7)Vacuum motor overload Normalcurrent load 36V 23-25 Amps.1. Check for debris in the vacuum motor. 2. Worn carbon brushes. 3. Defective motorbearings. 4. Check for short circuit* in vacuum motor or wiring. Repair or replace 5.Check for an open in the small ORG current sense wire.08(E-0-8)Solenoid Coil Bank OverloadBrush Solenoid Coil (K1) OverloadVacuum Solenoid Coil (K2) OverloadSolution Solenoid Coil (L1) Overload1. Check for wiring problems (short) on all three coil circuits and repair wiring.2. Check resistance on all three coils. The brush, vacuum and solution coil’s nominalspec. is 120 Ohms. If resistance is below 95 Ohms on any one coil, replace thesolenoid.17(E-0-17)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 24 if 0V controllerfailure (replace).18(E-0-18) 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.21(E-0-21)Scrub motor circuit open (**) 1. Check for disconnected brush motors, open in wiring, defective brush motorsolenoid load contact failure. 2. Check the negative supply cable at the brush motorfor a wiring problem or improper modifications.22(E-0-22) Scrub motor short Same as 06(E-0-6)23(E-0-23) Vacuum motor circuit open (**) 1. Check for disconnected vacuum motor wiring, open in wiring, defective vacuummotor and vacuum contactor failure.24(E-0-24) Vacuum motor short Same as 07(E-0-7)** See Service Test Mode in this Manual for further trouble shooting information.*** See the Main Control Board Special Program Options section to activate the Brush Type Selection function*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.