GE SX Series

DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 49
Revised May 2003
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-144
Power Transistor (Q1) did not turn off
properly.
This status code is displayed when, during pump control
operation, the transistor fails to turn off. This will result in a
PMT condition.
MEMORY RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
With no pump contactor, control may run
continuously.
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
-145
Power Transistor (Q1) did not turn on
properly.
This status code is displayed when during pump
control operation, the transistor fails to turn on.
MEMORY RECALL
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM
With no pump contactor, the control may
run continuously.
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 (-)