GE SX Series Installation And Operation Manual page 46

DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL
PUMP DESCRIPTION OF STATUS
STATUS CODE
A2 voltage is low (less than 88% of battery
-124
volts).
MEMORY RECALL
NO
SYMPTOM
Control does not operate. Status code
Circuits valid
may vary between code 123 and code 124.
for
Complete checks for code 124 and, if the
Pump problem is not found, perform checks for
code 123.
Controller
POSSIBLE CAUSE
Defective pump line contactor. Contactor
power tips are failing to close due to:
· Binding contactor tip assembly.
· Defective pump contactor coil (see status
code 123).
Open motor circuit
Check for open circuit or loose
·
connection in the pump motor circuit
from the A1 connection to the A2
connection on the control.
PUMP DESCRIPTION OF STATUS
STATUS CODE
Control logic card power supply is less
-127
than 10 VDC.
MEMORY RECALL
YES
SYMPTOM
Circuits valid
Control will not operate.
for
POSSIBLE CAUSE
Pump
Controller
Discharged Battery
· Check battery to insure proper state of
charge.
Loose connection at P1.
· Insure that the wire connection at P1 is
tight.
Defective logic card
· Replace control.
CORRECTIVE ACTIONS
CORRECTIVE ACTIONS
CAUSE OF STATUS INDICATION
This status code will be displayed when the A2 voltage is
less than 88% of battery volts and the pump line driver is
energized.
TROUBLE-SHOOTING DIAGRAM
L
KEY SW.
*
FU4
*
FU2
BATT (+)
*
P
LINE
CONTACTOR
P
A1
PUMP CONTROL
POWER CONNECTION
A2
N
A2
BATT (-)
N
POWER CONNECTION
*
SUPPLIED BY CUSTOMER
CAUSE OF STATUS INDICATION
This status code is displayed when the logic card
power supply is less than 10 volts.
TROUBLE-SHOOTING DIAGRAM
L
KEY SW.
*
FU4
*
BATT (+) FU2
*
P
LINE
CONTACTOR
P
A1
PUMP CONTROL
POWER CONNECTION
A2
N
A2
BATT (-)
N
POWER CONNECTION
*
SUPPLIED BY CUSTOMER
Page 46
*
P18
PUMP CONTROL TEMP
P2
P17
ACCEL POT INPUT
P7
P1
P12
P19
P20
P21
A1
A1
*
*
*
*
A2
*
*
*
P18
PUMP CONTROL TEMP
P2
P17
ACCEL POT INPUT
P7
P1
P12
P19
P20
P21
A1
A1
*
*
*
*
A2
*
*
Revised May 2003