Service Manual: SC750, SC800, SC 750 ST, SC800 ST
Form Number 56043150 Page 21
LCD
Display
Code
ST
Blink
Code
Code
Denion
Explanaon / Code Seng Condions / Flash Indicator
/ Disables / Check
5 1,3 Brush Motor Circuit
Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 60 amps or more.
Check for shorted motor, mechanical binding of motor
sha, current sense wire connecons, ground connec-
ons.
7 1,4 Vacuum Motor Circuit
Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 25 amps or more.
Check for shorted motor, current sense wire connecons,
ground connecons.
8 1,5 Soluon Solenoid Circuit
Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 0.7 amps or more.
Check for shorted solenoid winding, shorted wiring.
9 2,1 Vacuum Contactor Coil
Circuit Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 0.1 amps or more.
Check for shorted contactor winding, shorted wiring.
10 2,2 Brush Contactor Coil
Circuit Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 0.7 amps or more.
Check for shorted contactor winding, shorted wiring.
11 (N/A) Detergent Pump Circuit
Over Current
Excessive current draw was sensed.
Check for shorted pump winding, shorted wiring.
12 (N/A) Brush Remove Contactor
Coil Over Current
Excessive current draw was sensed. Code sets at approxi-
mately 0.1 amps or more.
Check for shorted contactor winding, shorted wiring
30 2,3 Soluon Solenoid Circuit
Open
The Main Machine Controller has turned the soluon
solenoid circuit on but it is not sensing any current ow.
(Senses <= 20mAmps for 5 seconds).
Check for open solenoid winding, open wiring.
31 2,4 Brush Motor Circuit
Open
The Main Machine Controller has energized the Brush
Contactor but it is not sensing any current ow through
the brush motor ground circuit for at least 5 seconds.
(Senses <= 4 Amps for 5 seconds and code 35 is not ac-
ve)
Check Motor, Contactor contacts, Wiring.
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