GE IC3645SR4U454Z2 - Page 49

DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL Page 49
January 1999
PUMP
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-123
Pump contactor coil current is low. This code will be displayed when the pump contactor
coil circuit current draw is less than 100 milliamps.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM:
Pump contactor will not pick up. Status
code may alternate between code 123 and
code 124. Complete check for code 123, if
the problem is not found, perform check for
code 124.
POSSIBLE CAUSE:
Defective Pump contactor coil circuit.
•= Check for open circuit or loose
connection between P2 and positive side
of P contactor coil.
•= Remove plug B. Check ohmic value from
P2 to positive side of P coil. Value
should be between 10 and 14 ohms.
Defective 1A contactor coil.
•= Remove plug. Check ohmic value from
positive side of coil to its plug connection.
Value should be between 10 and 14
ohms.
POWER CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
+
-
FU1
LINE
FU5
KEY
SWITCH
P1 P2
FU6
P
1A
P17 P18
PUMP
STATUS CODE
DESCRIPTION OF
STATUS
CAUSE OF STATUS INDICATION
-124
T2 voltage is low. (Less than
88% of battery voltage.)
This status code is displayed when T2 voltage is less than
88% of battery volts and the Pump driver is energized.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Pump
Controller
SYMPTOM:
Control does not operate. Status code may
alternate between code 123 and code 124.
Complete checks for 124, if the problem is
not found, perform code 123 check.
POSSIBLE CAUSE:
Defective Pump contactor.
•= Pump power tips fail to close because:
1) Welded normally closed power tips.
2) Binding contactor tip assembly.
3) Defective Pump contactor coil.
( See status code 123)
Open motor circuit
•= Check for open circuit or loose connection
in pump motor circuit from the A1
connection to the A2 connection on the
control panel.
Defective 1A contactor.
•= Perform checks as outlined in status 123.
POWER CONNECTIONS
POS A1
NEG A2
FIELD
ARMATURE
+
-
FU1
LINE
FU5
KEY
SWITCH
P1 P2
FU6
P
1A
P17 P18