GE IC3645SR4R404U2 Installation And Operation Manual page 42

DIAGNOSTIC STATUS CODES
TRANSISTOR PUMP CONTROL
PUMP
DESCRIPTION OF STATUS
STATUS CODE
T2 voltage is low. (Less than 88%
-124
of battery voltage.)
MEMORY RECALL
CORRECTIVE ACTIONS
NO
SYMPTOM:
Control does not operate. Status
Circuits valid
code may alternate between code
for
123 and code 124. Complete checks
for 124, if the problem is not found,
Pump
perform code 123 check
Controller
POSSIBLE CAUSE:
Defective Pump contactor.
•= Pump power tips fail to close
because:
- Welded normally closed power
tips.
- Binding contactor tip assembly.
- 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.
PUMP
DESCRIPTION OF STATUS
STATUS CODE
Logic card power supply is less than
-127
10 VDC.
MEMORY RECALL
CORRECTIVE ACTIONS
YES
SYMPTOM:
Pump contactor opens and
Circuits valid
closes, then can only be
for
closed by opening and
Pump
closing the key switch.
Controller
POSSIBLE CAUSE:
Discharged battery
•=
Loose connection at P1.
•=
Defective controller.
•=
.
Check battery to insure
proper state of charge.
Insure that the wire
connection at PB1 is
tight.
Replace control.
CAUSE OF STATUS INDICATION
This status code is displayed when T2 voltage is less
than 88% of battery volts and the Pump driver is
energized.
TROUBLE-SHOOTING DIAGRAM
FU5
KEY SWITCH
1A
L
FU6
P1 P18 P17
P11 P16 P15 P9 P8
LINE
FU1
+
POS A1
POWER CONNECTIONS
-
NEG A2
1A
CAUSE OF STATUS INDICATION
This status code is displayed when the logic card
power supply is less than 10 volts.
TROUBLE-SHOOTING DIAGRAM
FU5
KEY SWITCH
1A
L
FU6
P1 P18 P17 P2
P16 P15 P9 P8 P6 P5
P11
LINE
FU1
+
POS A1
POWER CONNECTIONS
-
NEG A2
1A
TO
TRACTION
P10 - BDI
P2
P10
P6 P5 P14 P20
P4 P3 P13 P21 P19 P12
ACC POT
TO TRACTION
CARD
TO
TRACTION
P10 - BDI
PY10
P10
P4 P3 P14 P13 P21 P20 P19 P12
ACC POT
TO TRACTION
CARD
Page 42
+5V FROM
TRACTION PY10
PY10 PY12
PY7
PY11
+5V FROM
TRACTION PY10
PY12
PY7
PY11
October 1998