Carrier VECTOR 6500 Operation & Service Manual page 167

Alarm
Steps
NO.
41 ENGINE STALLED
•
TRIGGER–ON: The engine is running, RPM sensor is good, and engine speed is less than 10
RPM; or the engine is running, RPM sensor alarm is ON, and the Oil Pressure switch contacts are
open.
•
UNIT CONTROL:
•
RESET CONDITION: Auto Restart after 15 minutes, or Alarm may be manually reset via keypad or
by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (See Note 1 page 7−2.) Operate the unit through the appropriate modes to see if any active alarm
occurs. Continue with the steps below as necessary.
1 Check For Alarm 130 - Check RPM Sensor
Check for alarm 130.
2 Check For Flash Code On Engine Speed Control Unit (ENSCU)
Check for flash codes on the ENSCU. Refer to ENSCU LED Fault Chart, Section 9.5, must
3 Was Engine Shut Off Manually?
Check for external cause.
4 Check For Bad F2 Or F3 Fuse Alarm
Check for alarm 71.
5 Check Fuel System
a. Check for Alarm 1.
b. Check fuel flow.
c. Check fuel system prime.
d. Check fuel system check valve
from filter to injection pump.
6 Check Fuel/Speed Actuator (FSA)
a. Check Run Relay LED.
b. Check voltage to ENSCU.
c. Inspect ENSCU connector pins &
terminals.
d. Inspect harness & control box
connector pins & terminals. (See
wiring schematic Section 10.)
e. Check resistance of FSA.
f.
g. Check
points SP3, SP5 ans SP6.
Additional steps on the next page.
62-11389
Alarm/Cause
Engine Operation: Engine and unit shutdown and alarm.
Standby Operation: This alarm will not activate in standby Operation.
Check operation of FSA.
connections at
When Alarms 130 and 41 occur at the same time,
generally the engine has run out or is running out of
fuel. This causes the engine RPM to surge and drop.
Check fuel tank and add fuel as necessary.
Check fuel lines between the fuel tank and the fuel
pump inlet for drawing air in.
be no LED alarm codes occurring to continue.
Correct problem.
Alarm conditions must be corrected and the alarm
cleared to continue.
Fill tank as needed.
Unrestricted fuel flow through system.
Fuel not gelled.
No air in fuel system.
Check valve must hold fuel and not leak back.
LED 28 must be ON.
Use Component Test Mode to energize Run Relay.
(Refer to Section 5.2.2.)
Must have 12.0 VDC or higher reading between
ENSCU 13 and 19.
No damage, moisture, or corrosion in connector.
No physical damage to harness.
No damage, moisture, or corrosion in connectors.
Refer to Section 2.12 for correct electrical values.
Plunger must move in when energized.
splice Connections must be good condition. No loose or
broken wires.
7−34
Corrective Action