Control S ste
Service Manual – SC8000
Code
Fault Description
Correction
27 C
15A Circuit breaker CB3 over
current
Control board has sensed open circuit fault for CB3 power
for side broom actuator motor (M7). Check for Violet wire
shorted to ground.
28 C
20A Circuit breaker CB4 over
current
Control board has sensed open circuit fault for CB4 power
for hydraulic solenoid manifold coils (L4 - L11). Check for
Orange wire shorted to ground.
29 C
10A Circuit breaker CB5 over
current
Control board has sensed open circuit fault for CB5 power
for hydraulic solenoid manifold coils (L1, L2 and L3) also
Pumps M4 and M6. Check for GRN/BRN wire shorted to
ground.
30
Side sweep lift actuator over
current
Three wires supply power to the M7 side broom lift
actuator motor; check wiring for problems. Wire colors
J3-4 BLU/RED (+) DN otherwise open, J3-5 WHT/RED
(-) UP otherwise open, J3-7 GRA/VIO common wire + UP
and - DN.
Test current draw full load 20A ± 2A max.
Check for frozen or binding lift linkage. Repair/replace as
needed.
31 NC
Detergent pump #1 over current
Check #1 detergent pump M10 and #2 detergent pump
M11 wiring for problems, #1 pump wire colors (+RED/WHT
and - RED/BLU), #2 (+ BLK/YEL and - BLK/RED).
Check pump motors for short circuit replace as needed.
32 NC
Detergent pump #2 over current
See pump #1
33 C
Engine hot fault
Coolant temperature high - causes engine fault, sets on
diesel machine only.
34 C
Hydraulic temperature fault
Sets when hydraulic oil temperature exceeds 220 F for 15
seconds.
35 C
Low voltage fault (battery)
One of the red display panel warning indicator lights. See the
explanation for the warning icon in the
eneral n or ation
arnin is la s
section.
36 NC
Service engine fault
LPG engine (Kubota 1.6) only, sets when ECM activates
MIL output - could be for many different reasons. See the
n ine S ste
section for the list of engine codes
and process for reading (extracting) codes.
37 C
Low oil pressure fault
Diesel only - causes engine fault to set. The red warning
indicator will light and the LCD will display the Low Oil
Pressure Icon.
38 C
Engine fault
Occurs if engine temperature too high (diesel), oil pressure
low (diesel), or engine run has changed to ignition inhibit
and key is on (LPG). Note: Engines will shut down. See the
corresponding
n ine
section for a list of engine codes and
how to read (extract) the codes.
39 NC
+\GUDXOLF¿OWHUIDXOW
6HWVWRZDUQRSHUDWRUWKDWRLO¿OWHULVSOXJJHGDQGQHHGVWR
be replaced. Note: Only activates when oil temperature is
above 100 degrees F (this prevents false signal upon cold
engine start-up).
