GE IC3645SR4U404N2, IC3645SP4U400N3 Open thermal protector TP1 or, Transistor is over temperature

DIAGNOSTIC STATUS CODES

TRANSISTOR PUMP CONTROLPage 47

PUMP	DESCRIPTION OF STATUS	CAUSE OF STATUS INDICATION
STATUS CODE
-128	Armature current is too high during the	Status code displayed when the current in the
	lift mode.	armature circuit is sustained above 300A for 70 sec.
MEMORY RECALL	CORRECTIVE ACTIONS	TROUBLE-SHOOTING DIAGRAM
YES
Circuits valid	SYMPTOM	FU3	KEY SWITCH
	Control will not operate.
for	POSSIBLE CAUSE	FU2
Pump
Controller	Continued operation of vehicle in high
	motor current condition.
	• Operate vehicle at lower motor current	LINE FU1
	condition for 70 seconds.
			P1	P2
		+		FIELD
		-	POS A1

POWER CONNECTIONS

NEG A2

ARMATURE

PUMP	DESCRIPTION OF
STATUS CODE	STATUS
-141	Open thermal protector (TP1) or
	transistor is over temperature.
MEMORY RECALL	CORRECTIVE ACTIONS
NO

CAUSE OF STATUS INDICATION

This status code is displayed when the voltage at the thermal protector is greater than 0.8 volts.

TROUBLE-SHOOTING DIAGRAM

Circuits valid

for

SYMPTOM

Reduced or no power to pump motor in control range.

FU3	KEY SWITCH	TO TRACTION
FU6
		P10 - BDI

PY7

Pump

Controller

POSSIBLE CAUSE

Control is in thermal cut-back.

•Allow control to cool, status code should disappear.

LINE FU1

+

-

P1 P2 P3

POS	A1	FIELD
	POWER	ARMATURE
CONNECTIONS
NEG	A2

PY12

P21 P19 P12 PY10

PY11

SPEED LIMIT 3 SPEED LIMIT 2 SPEED LIMIT 1

TO

TRACTION

CARD

January 2000