DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 52
Revised May 2003
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-157
Controller “motor current sensor” input
voltage polarity check.
This status code will be displayed when the voltage
input to motor current sensor is of the wrong polarity.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Pump control will not operate.
POSSIBLE CAUSE
Control is defective.
· Replace controller unit.
PUMP CONTROL
PLUG PL-2
P2
P1
P18
P12
P19
P20
P21
PUMP CONTROL TEMP
P7
L
P17
ACCEL POT INPUT
*
*
*
SPEED 2
SPEED 1
*
SPEED 3
*
SPEED 4
POWER CONNECTION
SUPPLIED BY CUSTOMER
*
KEY SW.
BATT (+)
P
*
FU4
FU2
LINE
CONTACTOR
*
*
ARMATURE
*
FIELD
*
PUMP CONTROL
POWER CONNECTION
A1
A2
A1
A2
A2
A1
P
N
N
BATT (-)
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-180
Voltage at capacitor (1C) is less than 14
volts.
This status code will be displayed when the voltage at P1 is
less than 14 volts. This occurs typically in the run mode of
operation.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
Pump control will not operate.
POSSIBLE CAUSE
(Line contactor controlled by traction
control).
Line Contactor opened up during run.
· Check connection from P17 to Line coil (-
) for loose connection.
· Check connection from battery (+) to Line
coil (+) for loose connection.
· Check power connection from battery (+)
to contactor L.
· Check for blown fuse at pump control.
· Check for dirty contactor tips.
PUMP CONTROL
PLUG PL-2
P2
P1
P18
P12
P19
P20
P21
PUMP CONTROL TEMP
P7
L
P17
ACCEL POT INPUT
*
*
*
SPEED 2
SPEED 1
*
SPEED 3
*
SPEED 4
POWER CONNECTION
SUPPLIED BY CUSTOMER
*
KEY SW.
BATT (+)
P
*
FU4
FU2
LINE
CONTACTOR
*
*
ARMATURE
*
FIELD
*
PUMP CONTROL
POWER CONNECTION
A1
A2
A1
A2
A2
A1
P
N
N
BATT (-)
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